13630657 has 8 divisors (see below), whose sum is σ = 14492160. Its totient is φ = 12783600.

The previous prime is 13630649. The next prime is 13630663. The reversal of 13630657 is 75603631.

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

It is a cyclic number.

It is not a de Polignac number, because 13630657 - 2³ = 13630649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13630637) 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, 1633 + ... + 5470.

It is an arithmetic number, because the mean of its divisors is an integer number (1811520).

Almost surely, 2^13630657 is an apocalyptic number.

It is an amenable number.

13630657 is a deficient number, since it is larger than the sum of its proper divisors (861503).

13630657 is a wasteful number, since it uses less digits than its factorization.

13630657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7223.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 13630657 is about 3691.9719663074. The cubic root of 13630657 is about 238.8758597385.

The spelling of 13630657 in words is "thirteen million, six hundred thirty thousand, six hundred fifty-seven".