86497057 has 4 divisors (see below), whose sum is σ = 86550916. Its totient is φ = 86443200.

The previous prime is 86497051. The next prime is 86497133. The reversal of 86497057 is 75079468.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51969681 + 34527376 = 7209^2 + 5876^2 .

It is a cyclic number.

It is not a de Polignac number, because 86497057 - 2⁷ = 86496929 is a prime.

It is a super-2 number, since 2×86497057² = 14963481739322498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86496998 and 86497016.

It is not an unprimeable number, because it can be changed into a prime (86497051) 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, 24444 + ... + 27757.

It is an arithmetic number, because the mean of its divisors is an integer number (21637729).

Almost surely, 2^86497057 is an apocalyptic number.

It is an amenable number.

86497057 is a deficient number, since it is larger than the sum of its proper divisors (53859).

86497057 is a wasteful number, since it uses less digits than its factorization.

86497057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53858.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 86497057 is about 9300.3794008632. The cubic root of 86497057 is about 442.2492554112.

The spelling of 86497057 in words is "eighty-six million, four hundred ninety-seven thousand, fifty-seven".