13670393 has 4 divisors (see below), whose sum is σ = 14913168. Its totient is φ = 12427620.

The previous prime is 13670351. The next prime is 13670413. The reversal of 13670393 is 39307631.

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 13670393 - 2¹² = 13666297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13670333) 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, 621371 + ... + 621392.

It is an arithmetic number, because the mean of its divisors is an integer number (3728292).

Almost surely, 2^13670393 is an apocalyptic number.

It is an amenable number.

13670393 is a deficient number, since it is larger than the sum of its proper divisors (1242775).

13670393 is a wasteful number, since it uses less digits than its factorization.

13670393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242774.

The product of its (nonzero) digits is 10206, while the sum is 32.

The square root of 13670393 is about 3697.3494560293. The cubic root of 13670393 is about 239.1077576440.

The spelling of 13670393 in words is "thirteen million, six hundred seventy thousand, three hundred ninety-three".