13939670 has 8 divisors (see below), whose sum is σ = 25091424. Its totient is φ = 5575864.

The previous prime is 13939669. The next prime is 13939693. The reversal of 13939670 is 7693931.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696974 + ... + 696993.

It is an arithmetic number, because the mean of its divisors is an integer number (3136428).

Almost surely, 2^13939670 is an apocalyptic number.

13939670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13939670 is a deficient number, since it is larger than the sum of its proper divisors (11151754).

13939670 is a wasteful number, since it uses less digits than its factorization.

13939670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393974.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 13939670 is about 3733.5867473517. The cubic root of 13939670 is about 240.6675282114.

The spelling of 13939670 in words is "thirteen million, nine hundred thirty-nine thousand, six hundred seventy".