82499850 has 96 divisors (see below), whose sum is σ = 237306240. Its totient is φ = 21035520.

The previous prime is 82499849. The next prime is 82499869. The reversal of 82499850 is 5899428.

82499850 is a `hidden beast` number, since 82 + 499 + 85 + 0 = 666.

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 = 82499796 and 82499805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29722 + ... + 32378.

It is an arithmetic number, because the mean of its divisors is an integer number (2471940).

Almost surely, 2^82499850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82499850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118653120).

82499850 is an abundant number, since it is smaller than the sum of its proper divisors (154806390).

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

82499850 is a wasteful number, since it uses less digits than its factorization.

82499850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701 (or 2690 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 82499850 is about 9082.9428050605. The cubic root of 82499850 is about 435.3291207225.

The spelling of 82499850 in words is "eighty-two million, four hundred ninety-nine thousand, eight hundred fifty".