13431694 has 4 divisors (see below), whose sum is σ = 20147544. Its totient is φ = 6715846.

The previous prime is 13431679. The next prime is 13431721. The reversal of 13431694 is 49613431.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3357922 + ... + 3357925.

It is an arithmetic number, because the mean of its divisors is an integer number (5036886).

Almost surely, 2^13431694 is an apocalyptic number.

13431694 is a deficient number, since it is larger than the sum of its proper divisors (6715850).

13431694 is an equidigital number, since it uses as much as digits as its factorization.

13431694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6715849.

The product of its digits is 7776, while the sum is 31.

The square root of 13431694 is about 3664.9275572649. The cubic root of 13431694 is about 237.7078896288.

The spelling of 13431694 in words is "thirteen million, four hundred thirty-one thousand, six hundred ninety-four".