13388977 has 8 divisors (see below), whose sum is σ = 16107200. Its totient is φ = 10872144.

The previous prime is 13388959. The next prime is 13388987. The reversal of 13388977 is 77988331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13388977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13388917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50202 + ... + 50467.

It is an arithmetic number, because the mean of its divisors is an integer number (2013400).

Almost surely, 2^13388977 is an apocalyptic number.

It is an amenable number.

13388977 is a deficient number, since it is larger than the sum of its proper divisors (2718223).

13388977 is a wasteful number, since it uses less digits than its factorization.

13388977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100695.

The product of its digits is 254016, while the sum is 46.

The square root of 13388977 is about 3659.0951067170. The cubic root of 13388977 is about 237.4556267978.

It can be divided in two parts, 13388 and 977, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 13388977 in words is "thirteen million, three hundred eighty-eight thousand, nine hundred seventy-seven".