386554664 has 8 divisors (see below), whose sum is σ = 724790010. Its totient is φ = 193277328.

The previous prime is 386554661. The next prime is 386554697. The reversal of 386554664 is 466455683.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 351862564 + 34692100 = 18758^2 + 5890^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (386554661) 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 as a sum of consecutive naturals, namely, 24159659 + ... + 24159674.

Almost surely, 2^386554664 is an apocalyptic number.

It is an amenable number.

386554664 is a deficient number, since it is larger than the sum of its proper divisors (338235346).

386554664 is a wasteful number, since it uses less digits than its factorization.

386554664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48319339 (or 48319335 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 47.

The square root of 386554664 is about 19660.9934642174. The cubic root of 386554664 is about 728.4565274433.

The spelling of 386554664 in words is "three hundred eighty-six million, five hundred fifty-four thousand, six hundred sixty-four".