13387877 has 4 divisors (see below), whose sum is σ = 13819776. Its totient is φ = 12955980.

The previous prime is 13387859. The next prime is 13387883. The reversal of 13387877 is 77878331.

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.

It is a cyclic number.

It is not a de Polignac number, because 13387877 - 2⁶ = 13387813 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 (13387897) 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, 215903 + ... + 215964.

It is an arithmetic number, because the mean of its divisors is an integer number (3454944).

Almost surely, 2^13387877 is an apocalyptic number.

It is an amenable number.

13387877 is a deficient number, since it is larger than the sum of its proper divisors (431899).

13387877 is an equidigital number, since it uses as much as digits as its factorization.

13387877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431898.

The product of its digits is 197568, while the sum is 44.

The square root of 13387877 is about 3658.9447932430. The cubic root of 13387877 is about 237.4491237283.

The spelling of 13387877 in words is "thirteen million, three hundred eighty-seven thousand, eight hundred seventy-seven".