13620737 has 8 divisors (see below), whose sum is σ = 14704704. Its totient is φ = 12541968.

The previous prime is 13620727. The next prime is 13620781. The reversal of 13620737 is 73702631.

13620737 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13620737 - 2⁴ = 13620721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13620707) 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, 5498 + ... + 7580.

It is an arithmetic number, because the mean of its divisors is an integer number (1838088).

Almost surely, 2^13620737 is an apocalyptic number.

It is an amenable number.

13620737 is a deficient number, since it is larger than the sum of its proper divisors (1083967).

13620737 is a wasteful number, since it uses less digits than its factorization.

13620737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 13620737 is about 3690.6282662983. The cubic root of 13620737 is about 238.8178966822.

The spelling of 13620737 in words is "thirteen million, six hundred twenty thousand, seven hundred thirty-seven".