86557746 has 16 divisors (see below), whose sum is σ = 188853408. Its totient is φ = 26229600.

The previous prime is 86557741. The next prime is 86557747. The reversal of 86557746 is 64775568.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 86557695 and 86557704.

It is not an unprimeable number, because it can be changed into a prime (86557741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655675 + ... + 655806.

It is an arithmetic number, because the mean of its divisors is an integer number (11803338).

Almost surely, 2^86557746 is an apocalyptic number.

86557746 is an abundant number, since it is smaller than the sum of its proper divisors (102295662).

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

86557746 is a wasteful number, since it uses less digits than its factorization.

86557746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311497.

The product of its digits is 1411200, while the sum is 48.

The square root of 86557746 is about 9303.6415451155. The cubic root of 86557746 is about 442.3526631311.

The spelling of 86557746 in words is "eighty-six million, five hundred fifty-seven thousand, seven hundred forty-six".