13673215 has 4 divisors (see below), whose sum is σ = 16407864. Its totient is φ = 10938568.

The previous prime is 13673207. The next prime is 13673221. The reversal of 13673215 is 51237631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51237631 = 97 ⋅528223.

It is a cyclic number.

It is not a de Polignac number, because 13673215 - 2³ = 13673207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1367317 + ... + 1367326.

It is an arithmetic number, because the mean of its divisors is an integer number (4101966).

Almost surely, 2^13673215 is an apocalyptic number.

13673215 is a deficient number, since it is larger than the sum of its proper divisors (2734649).

13673215 is an equidigital number, since it uses as much as digits as its factorization.

13673215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734648.

The product of its digits is 3780, while the sum is 28.

The square root of 13673215 is about 3697.7310610697. The cubic root of 13673215 is about 239.1242096379.

The spelling of 13673215 in words is "thirteen million, six hundred seventy-three thousand, two hundred fifteen".