86961256 has 48 divisors (see below), whose sum is σ = 179318700. Its totient is φ = 39481344.

The previous prime is 86961253. The next prime is 86961257. The reversal of 86961256 is 65216968.

It can be written as a sum of positive squares in 6 ways, for example, as 85858756 + 1102500 = 9266^2 + 1050^2 .

It is not an unprimeable number, because it can be changed into a prime (86961253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66400 + ... + 67696.

Almost surely, 2^86961256 is an apocalyptic number.

It is an amenable number.

86961256 is an abundant number, since it is smaller than the sum of its proper divisors (92357444).

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

86961256 is a wasteful number, since it uses less digits than its factorization.

86961256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366 (or 1345 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 86961256 is about 9325.3019254070. The cubic root of 86961256 is about 443.0389759625.

The spelling of 86961256 in words is "eighty-six million, nine hundred sixty-one thousand, two hundred fifty-six".