58991850 has 72 divisors (see below), whose sum is σ = 159370380. Its totient is φ = 15644160.

The previous prime is 58991843. The next prime is 58991851. The reversal of 58991850 is 5819985.

58991850 is a `hidden beast` number, since 589 + 9 + 18 + 50 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 8311689 + 50680161 = 2883^2 + 7119^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 58991796 and 58991805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58991851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 151456 + ... + 151844.

Almost surely, 2^58991850 is an apocalyptic number.

58991850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 58991850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79685190).

58991850 is an abundant number, since it is smaller than the sum of its proper divisors (100378530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

58991850 is a wasteful number, since it uses less digits than its factorization.

58991850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 45.

The square root of 58991850 is about 7680.6152097342. The cubic root of 58991850 is about 389.2817153829.

The spelling of 58991850 in words is "fifty-eight million, nine hundred ninety-one thousand, eight hundred fifty".