13674621 has 4 divisors (see below), whose sum is σ = 18232832. Its totient is φ = 9116412.

The previous prime is 13674611. The next prime is 13674637. The reversal of 13674621 is 12647631.

13674621 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 13674621 - 2¹⁵ = 13641853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13674601) 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, 2279101 + ... + 2279106.

It is an arithmetic number, because the mean of its divisors is an integer number (4558208).

Almost surely, 2^13674621 is an apocalyptic number.

It is an amenable number.

13674621 is a deficient number, since it is larger than the sum of its proper divisors (4558211).

13674621 is an equidigital number, since it uses as much as digits as its factorization.

13674621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4558210.

The product of its digits is 6048, while the sum is 30.

The square root of 13674621 is about 3697.9211727672. The cubic root of 13674621 is about 239.1324056405.

The spelling of 13674621 in words is "thirteen million, six hundred seventy-four thousand, six hundred twenty-one".