13879797 has 8 divisors (see below), whose sum is σ = 18631200. Its totient is φ = 9190800.

The previous prime is 13879793. The next prime is 13879819. The reversal of 13879797 is 79797831.

It is a happy number.

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

It is not a de Polignac number, because 13879797 - 2² = 13879793 is a prime.

It is a super-2 number, since 2×13879797² = 385297529522418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13879793) 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, 15079 + ... + 15972.

It is an arithmetic number, because the mean of its divisors is an integer number (2328900).

Almost surely, 2^13879797 is an apocalyptic number.

It is an amenable number.

13879797 is a deficient number, since it is larger than the sum of its proper divisors (4751403).

13879797 is a wasteful number, since it uses less digits than its factorization.

13879797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31203.

The product of its digits is 666792, while the sum is 51.

The square root of 13879797 is about 3725.5599579124. The cubic root of 13879797 is about 240.3224658439.

The spelling of 13879797 in words is "thirteen million, eight hundred seventy-nine thousand, seven hundred ninety-seven".