85657632 has 24 divisors (see below), whose sum is σ = 224851536. Its totient is φ = 28552512.

The previous prime is 85657631. The next prime is 85657633. The reversal of 85657632 is 23675658.

It is an interprime number because it is at equal distance from previous prime (85657631) and next prime (85657633).

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (85657631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446038 + ... + 446229.

It is an arithmetic number, because the mean of its divisors is an integer number (9368814).

Almost surely, 2^85657632 is an apocalyptic number.

It is an amenable number.

85657632 is an abundant number, since it is smaller than the sum of its proper divisors (139193904).

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

85657632 is a wasteful number, since it uses less digits than its factorization.

85657632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892280 (or 892272 counting only the distinct ones).

The product of its digits is 302400, while the sum is 42.

The square root of 85657632 is about 9255.1408417160. The cubic root of 85657632 is about 440.8139753563.

The spelling of 85657632 in words is "eighty-five million, six hundred fifty-seven thousand, six hundred thirty-two".