85707882 has 40 divisors (see below), whose sum is σ = 206827236. Its totient is φ = 26371008.

The previous prime is 85707871. The next prime is 85707883. The reversal of 85707882 is 28870758.

It is a happy number.

85707882 is a `hidden beast` number, since 8 + 570 + 78 + 8 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 62869041 + 22838841 = 7929^2 + 4779^2 .

It is not an unprimeable number, because it can be changed into a prime (85707883) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18243 + ... + 22454.

Almost surely, 2^85707882 is an apocalyptic number.

85707882 is an abundant number, since it is smaller than the sum of its proper divisors (121119354).

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

85707882 is a wasteful number, since it uses less digits than its factorization.

85707882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40724 (or 40715 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The square root of 85707882 is about 9257.8551511676. The cubic root of 85707882 is about 440.9001578779.

The spelling of 85707882 in words is "eighty-five million, seven hundred seven thousand, eight hundred eighty-two".