64386504 has 192 divisors, whose sum is σ = 222243840. Its totient is φ = 16381440.

The previous prime is 64386493. The next prime is 64386529. The reversal of 64386504 is 40568346.

64386504 is a `hidden beast` number, since 643 + 8 + 6 + 5 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202954 + ... + 203270.

It is an arithmetic number, because the mean of its divisors is an integer number (1157520).

Almost surely, 2^64386504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64386504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111121920).

64386504 is an abundant number, since it is smaller than the sum of its proper divisors (157857336).

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

64386504 is a wasteful number, since it uses less digits than its factorization.

64386504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 64386504 is about 8024.1201386819. The cubic root of 64386504 is about 400.8036011485.

The spelling of 64386504 in words is "sixty-four million, three hundred eighty-six thousand, five hundred four".