13639064 has 16 divisors (see below), whose sum is σ = 25654200. Its totient is φ = 6797952.

The previous prime is 13639063. The next prime is 13639079. The reversal of 13639064 is 46093631.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13639064.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13639063) 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, 167 + ... + 5225.

Almost surely, 2^13639064 is an apocalyptic number.

It is an amenable number.

13639064 is a deficient number, since it is larger than the sum of its proper divisors (12015136).

13639064 is a wasteful number, since it uses less digits than its factorization.

13639064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5402 (or 5398 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 13639064 is about 3693.1103422454. The cubic root of 13639064 is about 238.9249602483.

The spelling of 13639064 in words is "thirteen million, six hundred thirty-nine thousand, sixty-four".