13657790 has 16 divisors (see below), whose sum is σ = 24654240. Its totient is φ = 5447520.

The previous prime is 13657781. The next prime is 13657793. The reversal of 13657790 is 9775631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13657793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2135 + ... + 5645.

It is an arithmetic number, because the mean of its divisors is an integer number (1540890).

Almost surely, 2^13657790 is an apocalyptic number.

13657790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13657790 is a deficient number, since it is larger than the sum of its proper divisors (10996450).

13657790 is a wasteful number, since it uses less digits than its factorization.

13657790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3907.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 13657790 is about 3695.6447340079. The cubic root of 13657790 is about 239.0342556946.

The spelling of 13657790 in words is "thirteen million, six hundred fifty-seven thousand, seven hundred ninety".