13990577 has 4 divisors (see below), whose sum is σ = 14092836. Its totient is φ = 13888320.

The previous prime is 13990549. The next prime is 13990583. The reversal of 13990577 is 77509931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3225616 + 10764961 = 1796^2 + 3281^2 .

It is a cyclic number.

It is not a de Polignac number, because 13990577 - 2¹⁴ = 13974193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13990547) 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, 50924 + ... + 51197.

It is an arithmetic number, because the mean of its divisors is an integer number (3523209).

Almost surely, 2^13990577 is an apocalyptic number.

It is an amenable number.

13990577 is a deficient number, since it is larger than the sum of its proper divisors (102259).

13990577 is a wasteful number, since it uses less digits than its factorization.

13990577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102258.

The product of its (nonzero) digits is 59535, while the sum is 41.

The square root of 13990577 is about 3740.3979734782. The cubic root of 13990577 is about 240.9601410180.

The spelling of 13990577 in words is "thirteen million, nine hundred ninety thousand, five hundred seventy-seven".