13430691 has 10 divisors (see below), whose sum is σ = 20063252. Its totient is φ = 8953740.

The previous prime is 13430687. The next prime is 13430699. The reversal of 13430691 is 19603431.

It is not a de Polignac number, because 13430691 - 2² = 13430687 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13430699) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 82825 + ... + 82986.

Almost surely, 2^13430691 is an apocalyptic number.

13430691 is a deficient number, since it is larger than the sum of its proper divisors (6632561).

13430691 is an equidigital number, since it uses as much as digits as its factorization.

13430691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165823 (or 165814 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 13430691 is about 3664.7907170806. The cubic root of 13430691 is about 237.7019726053.

The spelling of 13430691 in words is "thirteen million, four hundred thirty thousand, six hundred ninety-one".