13399277 has 4 divisors (see below), whose sum is σ = 13684416. Its totient is φ = 13114140.

The previous prime is 13399259. The next prime is 13399283. The reversal of 13399277 is 77299331.

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: 77299331 = 1999 ⋅38669.

It is a cyclic number.

It is not a de Polignac number, because 13399277 - 2⁸ = 13399021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13399207) 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, 142499 + ... + 142592.

It is an arithmetic number, because the mean of its divisors is an integer number (3421104).

Almost surely, 2^13399277 is an apocalyptic number.

It is an amenable number.

13399277 is a deficient number, since it is larger than the sum of its proper divisors (285139).

13399277 is an equidigital number, since it uses as much as digits as its factorization.

13399277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285138.

The product of its digits is 71442, while the sum is 41.

The square root of 13399277 is about 3660.5022879381. The cubic root of 13399277 is about 237.5165019005.

The spelling of 13399277 in words is "thirteen million, three hundred ninety-nine thousand, two hundred seventy-seven".