13949577 has 10 divisors (see below), whose sum is σ = 20838378. Its totient is φ = 9299664.

The previous prime is 13949567. The next prime is 13949581. The reversal of 13949577 is 77594931.

13949577 is a `hidden beast` number, since 1 + 39 + 49 + 577 = 666.

13949577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8088336 + 5861241 = 2844^2 + 2421^2 .

It is not a de Polignac number, because 13949577 - 2⁷ = 13949449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13949527) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 86028 + ... + 86189.

Almost surely, 2^13949577 is an apocalyptic number.

It is an amenable number.

13949577 is a deficient number, since it is larger than the sum of its proper divisors (6888801).

13949577 is an equidigital number, since it uses as much as digits as its factorization.

13949577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172229 (or 172220 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 13949577 is about 3734.9132520047. The cubic root of 13949577 is about 240.7245292878.

The spelling of 13949577 in words is "thirteen million, nine hundred forty-nine thousand, five hundred seventy-seven".