13247964 has 36 divisors (see below), whose sum is σ = 35459424. Its totient is φ = 4156032.

The previous prime is 13247957. The next prime is 13247987. The reversal of 13247964 is 46974231.

13247964 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10212 + ... + 11435.

It is an arithmetic number, because the mean of its divisors is an integer number (984984).

Almost surely, 2^13247964 is an apocalyptic number.

It is an amenable number.

13247964 is an abundant number, since it is smaller than the sum of its proper divisors (22211460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13247964 is a wasteful number, since it uses less digits than its factorization.

13247964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21674 (or 21669 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 13247964 is about 3639.7752677878. The cubic root of 13247964 is about 236.6190536588.

The spelling of 13247964 in words is "thirteen million, two hundred forty-seven thousand, nine hundred sixty-four".