13399493 has 4 divisors (see below), whose sum is σ = 13421760. Its totient is φ = 13377228.

The previous prime is 13399489. The next prime is 13399499. The reversal of 13399493 is 39499331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39499331 = 1789 ⋅22079.

It is a cyclic number.

It is not a de Polignac number, because 13399493 - 2² = 13399489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13399493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13399499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10205 + ... + 11442.

It is an arithmetic number, because the mean of its divisors is an integer number (3355440).

Almost surely, 2^13399493 is an apocalyptic number.

It is an amenable number.

13399493 is a deficient number, since it is larger than the sum of its proper divisors (22267).

13399493 is an equidigital number, since it uses as much as digits as its factorization.

13399493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22266.

The product of its digits is 78732, while the sum is 41.

The square root of 13399493 is about 3660.5317919668. The cubic root of 13399493 is about 237.5177781706.

The spelling of 13399493 in words is "thirteen million, three hundred ninety-nine thousand, four hundred ninety-three".