13949761 has 6 divisors (see below), whose sum is σ = 16227330. Its totient is φ = 11956896.

The previous prime is 13949729. The next prime is 13949779. The reversal of 13949761 is 16794931.

13949761 is nontrivially palindromic in base 6.

13949761 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., 11289600 + 2660161 = 3360^2 + 1631^2 .

It is not a de Polignac number, because 13949761 - 2⁵ = 13949729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13949791) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142296 + ... + 142393.

It is an arithmetic number, because the mean of its divisors is an integer number (2704555).

Almost surely, 2^13949761 is an apocalyptic number.

It is an amenable number.

13949761 is a deficient number, since it is larger than the sum of its proper divisors (2277569).

13949761 is an equidigital number, since it uses as much as digits as its factorization.

13949761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284703 (or 284696 counting only the distinct ones).

The product of its digits is 40824, while the sum is 40.

The square root of 13949761 is about 3734.9378843563. The cubic root of 13949761 is about 240.7255876979.

The spelling of 13949761 in words is "thirteen million, nine hundred forty-nine thousand, seven hundred sixty-one".