86561074 has 32 divisors (see below), whose sum is σ = 140616000. Its totient is φ = 39839040.

The previous prime is 86561053. The next prime is 86561081. The reversal of 86561074 is 47016568.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247852 + ... + 248200.

It is an arithmetic number, because the mean of its divisors is an integer number (4394250).

Almost surely, 2^86561074 is an apocalyptic number.

86561074 is a deficient number, since it is larger than the sum of its proper divisors (54054926).

86561074 is a wasteful number, since it uses less digits than its factorization.

86561074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 86561074 is about 9303.8203980945. The cubic root of 86561074 is about 442.3583322975.

It can be divided in two parts, 8656 and 1074, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 86561074 in words is "eighty-six million, five hundred sixty-one thousand, seventy-four".