13657768 has 32 divisors (see below), whose sum is σ = 26928000. Its totient is φ = 6481728.

The previous prime is 13657759. The next prime is 13657769. The reversal of 13657768 is 86775631.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13657769) 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, 36430 + ... + 36802.

It is an arithmetic number, because the mean of its divisors is an integer number (841500).

Almost surely, 2^13657768 is an apocalyptic number.

It is an amenable number.

13657768 is a deficient number, since it is larger than the sum of its proper divisors (13270232).

13657768 is a wasteful number, since it uses less digits than its factorization.

13657768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 597 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The square root of 13657768 is about 3695.6417575301. The cubic root of 13657768 is about 239.0341273489.

The spelling of 13657768 in words is "thirteen million, six hundred fifty-seven thousand, seven hundred sixty-eight".