13927977 has 16 divisors (see below), whose sum is σ = 23582080. Its totient is φ = 7958736.

The previous prime is 13927961. The next prime is 13927993. The reversal of 13927977 is 77972931.

It is an interprime number because it is at equal distance from previous prime (13927961) and next prime (13927993).

It is not a de Polignac number, because 13927977 - 2⁴ = 13927961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13922977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36658 + ... + 37035.

It is an arithmetic number, because the mean of its divisors is an integer number (1473880).

Almost surely, 2^13927977 is an apocalyptic number.

It is an amenable number.

13927977 is a deficient number, since it is larger than the sum of its proper divisors (9654103).

13927977 is an equidigital number, since it uses as much as digits as its factorization.

13927977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73709 (or 73703 counting only the distinct ones).

The product of its digits is 166698, while the sum is 45.

The square root of 13927977 is about 3732.0204983360. The cubic root of 13927977 is about 240.6002164164.

The spelling of 13927977 in words is "thirteen million, nine hundred twenty-seven thousand, nine hundred seventy-seven".