82807158 has 48 divisors (see below), whose sum is σ = 195416064. Its totient is φ = 23320080.

The previous prime is 82807141. The next prime is 82807181. The reversal of 82807158 is 85170828.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18891 + ... + 22857.

It is an arithmetic number, because the mean of its divisors is an integer number (4071168).

Almost surely, 2^82807158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82807158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97708032).

82807158 is an abundant number, since it is smaller than the sum of its proper divisors (112608906).

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

82807158 is a wasteful number, since it uses less digits than its factorization.

82807158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4057 (or 4050 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 82807158 is about 9099.8438448140. The cubic root of 82807158 is about 435.8689776885.

The spelling of 82807158 in words is "eighty-two million, eight hundred seven thousand, one hundred fifty-eight".