58991085 has 40 divisors (see below), whose sum is σ = 106765560. Its totient is φ = 31159296.

The previous prime is 58991083. The next prime is 58991089. The reversal of 58991085 is 58019985.

It can be written as a sum of positive squares in 4 ways, for example, as 1565001 + 57426084 = 1251^2 + 7578^2 .

It is not a de Polignac number, because 58991085 - 2¹ = 58991083 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 58991085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58991083) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 45121 + ... + 46409.

It is an arithmetic number, because the mean of its divisors is an integer number (2669139).

Almost surely, 2^58991085 is an apocalyptic number.

It is an amenable number.

58991085 is a deficient number, since it is larger than the sum of its proper divisors (47774475).

58991085 is a wasteful number, since it uses less digits than its factorization.

58991085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419 (or 1410 counting only the distinct ones).

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

The square root of 58991085 is about 7680.5654088745. The cubic root of 58991085 is about 389.2800326544.

The spelling of 58991085 in words is "fifty-eight million, nine hundred ninety-one thousand, eighty-five".