85897956 has 12 divisors (see below), whose sum is σ = 200428592. Its totient is φ = 28632648.

The previous prime is 85897951. The next prime is 85897963. The reversal of 85897956 is 65979858.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 85897896 and 85897905.

It is not an unprimeable number, because it can be changed into a prime (85897951) 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, 3579070 + ... + 3579093.

Almost surely, 2^85897956 is an apocalyptic number.

It is an amenable number.

85897956 is an abundant number, since it is smaller than the sum of its proper divisors (114530636).

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

85897956 is a wasteful number, since it uses less digits than its factorization.

85897956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7158170 (or 7158168 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 57.

The square root of 85897956 is about 9268.1150187080. The cubic root of 85897956 is about 441.2258446974.

The spelling of 85897956 in words is "eighty-five million, eight hundred ninety-seven thousand, nine hundred fifty-six".