86845564 has 24 divisors (see below), whose sum is σ = 164100608. Its totient is φ = 39977280.

The previous prime is 86845559. The next prime is 86845573. The reversal of 86845564 is 46554868.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19909 + ... + 23875.

Almost surely, 2^86845564 is an apocalyptic number.

It is an amenable number.

86845564 is a deficient number, since it is larger than the sum of its proper divisors (77255044).

86845564 is a wasteful number, since it uses less digits than its factorization.

86845564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405 (or 4403 counting only the distinct ones).

The product of its digits is 921600, while the sum is 46.

The square root of 86845564 is about 9319.0967373453. The cubic root of 86845564 is about 442.8424178841.

It can be divided in two parts, 86 and 845564, that added together give a triangular number (845650 = T₁₃₀₀).

The spelling of 86845564 in words is "eighty-six million, eight hundred forty-five thousand, five hundred sixty-four".