86466664 has 16 divisors (see below), whose sum is σ = 162516420. Its totient is φ = 43128960.

The previous prime is 86466659. The next prime is 86466727. The reversal of 86466664 is 46666468.

It can be written as a sum of positive squares in 2 ways, for example, as 84088900 + 2377764 = 9170^2 + 1542^2 .

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 3 ways as a sum of consecutive naturals, for example, 9469 + ... + 16204.

Almost surely, 2^86466664 is an apocalyptic number.

It is an amenable number.

86466664 is a deficient number, since it is larger than the sum of its proper divisors (76049756).

86466664 is a wasteful number, since it uses less digits than its factorization.

86466664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26100 (or 26096 counting only the distinct ones).

The product of its digits is 995328, while the sum is 46.

The square root of 86466664 is about 9298.7452917047. The cubic root of 86466664 is about 442.1974507344.

It can be divided in two parts, 864 and 66664, that added together give a triangular number (67528 = T₃₆₇).

The spelling of 86466664 in words is "eighty-six million, four hundred sixty-six thousand, six hundred sixty-four".