86402961 has 12 divisors (see below), whose sum is σ = 125553792. Its totient is φ = 57256056.

The previous prime is 86402957. The next prime is 86402969. The reversal of 86402961 is 16920468.

86402961 is a `hidden beast` number, since 8 + 640 + 2 + 9 + 6 + 1 = 666.

It is not a de Polignac number, because 86402961 - 2² = 86402957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86402969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27241 + ... + 30246.

It is an arithmetic number, because the mean of its divisors is an integer number (10462816).

Almost surely, 2^86402961 is an apocalyptic number.

It is an amenable number.

86402961 is a deficient number, since it is larger than the sum of its proper divisors (39150831).

86402961 is a wasteful number, since it uses less digits than its factorization.

86402961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57660 (or 57657 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 86402961 is about 9295.3193059733. The cubic root of 86402961 is about 442.0888299723.

The spelling of 86402961 in words is "eighty-six million, four hundred two thousand, nine hundred sixty-one".