64399006 has 8 divisors (see below), whose sum is σ = 110398320. Its totient is φ = 27599568.

The previous prime is 64399003. The next prime is 64399007. The reversal of 64399006 is 60099346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64399003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2299951 + ... + 2299978.

It is an arithmetic number, because the mean of its divisors is an integer number (13799790).

Almost surely, 2^64399006 is an apocalyptic number.

64399006 is a deficient number, since it is larger than the sum of its proper divisors (45999314).

64399006 is a wasteful number, since it uses less digits than its factorization.

64399006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4599938.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 64399006 is about 8024.8991270919. The cubic root of 64399006 is about 400.8295409652.

The spelling of 64399006 in words is "sixty-four million, three hundred ninety-nine thousand, six".