64072004 has 6 divisors (see below), whose sum is σ = 112126014. Its totient is φ = 32036000.

The previous prime is 64072003. The next prime is 64072007. The reversal of 64072004 is 40027046.

It can be written as a sum of positive squares in only one way, i.e., 64032004 + 40000 = 8002^2 + 200^2 .

It is not an unprimeable number, because it can be changed into a prime (64072003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8008997 + ... + 8009004.

It is an arithmetic number, because the mean of its divisors is an integer number (18687669).

Almost surely, 2^64072004 is an apocalyptic number.

It is an amenable number.

64072004 is a deficient number, since it is larger than the sum of its proper divisors (48054010).

64072004 is a wasteful number, since it uses less digits than its factorization.

64072004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16018005 (or 16018003 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 64072004 is about 8004.4989849459. The cubic root of 64072004 is about 400.1499521122.

The spelling of 64072004 in words is "sixty-four million, seventy-two thousand, four".