13697788 has 36 divisors (see below), whose sum is σ = 27116208. Its totient is φ = 6040320.

The previous prime is 13697777. The next prime is 13697791. The reversal of 13697788 is 88779631.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15108 + ... + 15988.

It is an arithmetic number, because the mean of its divisors is an integer number (753228).

Almost surely, 2^13697788 is an apocalyptic number.

It is an amenable number.

13697788 is a deficient number, since it is larger than the sum of its proper divisors (13418420).

13697788 is a wasteful number, since it uses less digits than its factorization.

13697788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934 (or 919 counting only the distinct ones).

The product of its digits is 508032, while the sum is 49.

The square root of 13697788 is about 3701.0522827974. The cubic root of 13697788 is about 239.2673723267.

The spelling of 13697788 in words is "thirteen million, six hundred ninety-seven thousand, seven hundred eighty-eight".