86924961 has 64 divisors (see below), whose sum is σ = 145152000. Its totient is φ = 51148800.

The previous prime is 86924947. The next prime is 86924963. The reversal of 86924961 is 16942968.

It is a happy number.

It is not a de Polignac number, because 86924961 - 2¹³ = 86916769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86924963) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 583315 + ... + 583463.

It is an arithmetic number, because the mean of its divisors is an integer number (2268000).

Almost surely, 2^86924961 is an apocalyptic number.

It is an amenable number.

86924961 is a deficient number, since it is larger than the sum of its proper divisors (58227039).

86924961 is a wasteful number, since it uses less digits than its factorization.

86924961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 241 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 86924961 is about 9323.3556727178. The cubic root of 86924961 is about 442.9773303593.

The spelling of 86924961 in words is "eighty-six million, nine hundred twenty-four thousand, nine hundred sixty-one".