13478961 has 16 divisors (see below), whose sum is σ = 19137600. Its totient is φ = 8414208.

The previous prime is 13478957. The next prime is 13478981. The reversal of 13478961 is 16987431.

13478961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13478961 - 2² = 13478957 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13478911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3745 + ... + 6401.

It is an arithmetic number, because the mean of its divisors is an integer number (1196100).

Almost surely, 2^13478961 is an apocalyptic number.

It is an amenable number.

13478961 is a deficient number, since it is larger than the sum of its proper divisors (5658639).

13478961 is a wasteful number, since it uses less digits than its factorization.

13478961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768.

The product of its digits is 36288, while the sum is 39.

The square root of 13478961 is about 3671.3704525694. The cubic root of 13478961 is about 237.9863996654.

The spelling of 13478961 in words is "thirteen million, four hundred seventy-eight thousand, nine hundred sixty-one".