13672491 has 8 divisors (see below), whose sum is σ = 20834304. Its totient is φ = 7812840.

The previous prime is 13672487. The next prime is 13672513. The reversal of 13672491 is 19427631.

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

It is not a de Polignac number, because 13672491 - 2² = 13672487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13672411) 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, 325515 + ... + 325556.

It is an arithmetic number, because the mean of its divisors is an integer number (2604288).

Almost surely, 2^13672491 is an apocalyptic number.

13672491 is a deficient number, since it is larger than the sum of its proper divisors (7161813).

13672491 is an equidigital number, since it uses as much as digits as its factorization.

13672491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651081.

The product of its digits is 9072, while the sum is 33.

The square root of 13672491 is about 3697.6331619024. The cubic root of 13672491 is about 239.1199890021.

It can be divided in two parts, 136 and 72491, that added together give a palindrome (72627).

The spelling of 13672491 in words is "thirteen million, six hundred seventy-two thousand, four hundred ninety-one".