86664546 has 32 divisors (see below), whose sum is σ = 194119680. Its totient is φ = 28658448.

The previous prime is 86664541. The next prime is 86664547. The reversal of 86664546 is 64546668.

It is a super-2 number, since 2×86664546² = 15021487066772232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86664541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 540 + ... + 13176.

It is an arithmetic number, because the mean of its divisors is an integer number (6066240).

Almost surely, 2^86664546 is an apocalyptic number.

86664546 is an abundant number, since it is smaller than the sum of its proper divisors (107455134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86664546 is a wasteful number, since it uses less digits than its factorization.

86664546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12775 (or 12769 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 86664546 is about 9309.3794637452. The cubic root of 86664546 is about 442.5345218686.

The spelling of 86664546 in words is "eighty-six million, six hundred sixty-four thousand, five hundred forty-six".