64731004 has 24 divisors (see below), whose sum is σ = 123999008. Its totient is φ = 29384640.

The previous prime is 64730977. The next prime is 64731059. The reversal of 64731004 is 40013746.

It is a super-3 number, since 3×64731004³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64731004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7032 + ... + 13375.

Almost surely, 2^64731004 is an apocalyptic number.

It is an amenable number.

64731004 is a deficient number, since it is larger than the sum of its proper divisors (59268004).

64731004 is a wasteful number, since it uses less digits than its factorization.

64731004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20485 (or 20483 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 64731004 is about 8045.5580291239. The cubic root of 64731004 is about 401.5171632637.

The spelling of 64731004 in words is "sixty-four million, seven hundred thirty-one thousand, four".