664677039 has 16 divisors (see below), whose sum is σ = 956262272. Its totient is φ = 408237408.

The previous prime is 664677001. The next prime is 664677053. The reversal of 664677039 is 930776466.

It is not a de Polignac number, because 664677039 - 2¹³ = 664668847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664677059) 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, 4104 + ... + 36690.

It is an arithmetic number, because the mean of its divisors is an integer number (59766392).

Almost surely, 2^664677039 is an apocalyptic number.

664677039 is a deficient number, since it is larger than the sum of its proper divisors (291585233).

664677039 is a wasteful number, since it uses less digits than its factorization.

664677039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33126.

The product of its (nonzero) digits is 1143072, while the sum is 48.

The square root of 664677039 is about 25781.3312107812. The cubic root of 664677039 is about 872.7105488263.

The spelling of 664677039 in words is "six hundred sixty-four million, six hundred seventy-seven thousand, thirty-nine".