13988727 has 8 divisors (see below), whose sum is σ = 20724080. Its totient is φ = 9325800.

The previous prime is 13988713. The next prime is 13988783. The reversal of 13988727 is 72788931.

It is not a de Polignac number, because 13988727 - 2⁷ = 13988599 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 (13988827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259024 + ... + 259077.

It is an arithmetic number, because the mean of its divisors is an integer number (2590510).

Almost surely, 2^13988727 is an apocalyptic number.

13988727 is a deficient number, since it is larger than the sum of its proper divisors (6735353).

13988727 is an equidigital number, since it uses as much as digits as its factorization.

13988727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518110 (or 518104 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 13988727 is about 3740.1506654144. The cubic root of 13988727 is about 240.9495196808.

The spelling of 13988727 in words is "thirteen million, nine hundred eighty-eight thousand, seven hundred twenty-seven".