13391477 has 4 divisors (see below), whose sum is σ = 14608896. Its totient is φ = 12174060.

The previous prime is 13391467. The next prime is 13391501. The reversal of 13391477 is 77419331.

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: 77419331 = 11 ⋅7038121.

It is a cyclic number.

It is not a de Polignac number, because 13391477 - 2¹⁶ = 13325941 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 (13391437) 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, 608693 + ... + 608714.

It is an arithmetic number, because the mean of its divisors is an integer number (3652224).

Almost surely, 2^13391477 is an apocalyptic number.

It is an amenable number.

13391477 is a deficient number, since it is larger than the sum of its proper divisors (1217419).

13391477 is a wasteful number, since it uses less digits than its factorization.

13391477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217418.

The product of its digits is 15876, while the sum is 35.

The square root of 13391477 is about 3659.4367052868. The cubic root of 13391477 is about 237.4704051766.

The spelling of 13391477 in words is "thirteen million, three hundred ninety-one thousand, four hundred seventy-seven".