13907961 has 6 divisors (see below), whose sum is σ = 20089290. Its totient is φ = 9271968.

The previous prime is 13907953. The next prime is 13907983. The reversal of 13907961 is 16970931.

13907961 is digitally balanced in base 3, 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., 12467961 + 1440000 = 3531^2 + 1200^2 .

It is not a de Polignac number, because 13907961 - 2³ = 13907953 is a prime.

It is a super-3 number, since 3×13907961³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13907951) 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, 772656 + ... + 772673.

It is an arithmetic number, because the mean of its divisors is an integer number (3348215).

Almost surely, 2^13907961 is an apocalyptic number.

It is an amenable number.

13907961 is a deficient number, since it is larger than the sum of its proper divisors (6181329).

13907961 is a wasteful number, since it uses less digits than its factorization.

13907961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545335 (or 1545332 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 13907961 is about 3729.3378768891. The cubic root of 13907961 is about 240.4849050365.

The spelling of 13907961 in words is "thirteen million, nine hundred seven thousand, nine hundred sixty-one".