3999064 has 8 divisors (see below), whose sum is σ = 7498260. Its totient is φ = 1999528.

The previous prime is 3999053. The next prime is 3999067. The reversal of 3999064 is 4609993.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3999067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249934 + ... + 249949.

Almost surely, 2^3999064 is an apocalyptic number.

It is an amenable number.

3999064 is a deficient number, since it is larger than the sum of its proper divisors (3499196).

3999064 is a wasteful number, since it uses less digits than its factorization.

3999064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499889 (or 499885 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 3999064 is about 1999.7659863094. The cubic root of 3999064 is about 158.7277225027.

The spelling of 3999064 in words is "three million, nine hundred ninety-nine thousand, sixty-four".