13397877 has 6 divisors (see below), whose sum is σ = 19352502. Its totient is φ = 8931912.

The previous prime is 13397863. The next prime is 13397893. The reversal of 13397877 is 77879331.

It can be written as a sum of positive squares in only one way, i.e., 7017201 + 6380676 = 2649^2 + 2526^2 .

It is not a de Polignac number, because 13397877 - 2⁴ = 13397861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13397807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 744318 + ... + 744335.

It is an arithmetic number, because the mean of its divisors is an integer number (3225417).

Almost surely, 2^13397877 is an apocalyptic number.

It is an amenable number.

13397877 is a deficient number, since it is larger than the sum of its proper divisors (5954625).

13397877 is a wasteful number, since it uses less digits than its factorization.

13397877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488659 (or 1488656 counting only the distinct ones).

The product of its digits is 222264, while the sum is 45.

The square root of 13397877 is about 3660.3110523561. The cubic root of 13397877 is about 237.5082294471.

It can be divided in two parts, 1339 and 7877, that added together give a square (9216 = 96²).

The spelling of 13397877 in words is "thirteen million, three hundred ninety-seven thousand, eight hundred seventy-seven".