13759978 has 16 divisors (see below), whose sum is σ = 21526560. Its totient is φ = 6588400.

The previous prime is 13759961. The next prime is 13759979. The reversal of 13759978 is 87995731.

It is not an unprimeable number, because it can be changed into a prime (13759979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6693 + ... + 8503.

It is an arithmetic number, because the mean of its divisors is an integer number (1345410).

Almost surely, 2^13759978 is an apocalyptic number.

13759978 is a deficient number, since it is larger than the sum of its proper divisors (7766582).

13759978 is a wasteful number, since it uses less digits than its factorization.

13759978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973.

The product of its digits is 476280, while the sum is 49.

The square root of 13759978 is about 3709.4444327958. Note that the first 4 decimals coincide. The cubic root of 13759978 is about 239.6289288865.

The spelling of 13759978 in words is "thirteen million, seven hundred fifty-nine thousand, nine hundred seventy-eight".