13490637 has 4 divisors (see below), whose sum is σ = 17987520. Its totient is φ = 8993756.

The previous prime is 13490629. The next prime is 13490641. The reversal of 13490637 is 73609431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13490637 - 2³ = 13490629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13490598 and 13490607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13490657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2248437 + ... + 2248442.

It is an arithmetic number, because the mean of its divisors is an integer number (4496880).

Almost surely, 2^13490637 is an apocalyptic number.

It is an amenable number.

13490637 is a deficient number, since it is larger than the sum of its proper divisors (4496883).

13490637 is an equidigital number, since it uses as much as digits as its factorization.

13490637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4496882.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 13490637 is about 3672.9602502614. The cubic root of 13490637 is about 238.0550975232.

The spelling of 13490637 in words is "thirteen million, four hundred ninety thousand, six hundred thirty-seven".