13247916 has 24 divisors (see below), whose sum is σ = 33722304. Its totient is φ = 4014480.

The previous prime is 13247911. The next prime is 13247939. The reversal of 13247916 is 61974231.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (13247911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50050 + ... + 50313.

It is an arithmetic number, because the mean of its divisors is an integer number (1405096).

Almost surely, 2^13247916 is an apocalyptic number.

It is an amenable number.

13247916 is an abundant number, since it is smaller than the sum of its proper divisors (20474388).

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

13247916 is a wasteful number, since it uses less digits than its factorization.

13247916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100381 (or 100379 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 13247916 is about 3639.7686739682. The cubic root of 13247916 is about 236.6187678859.

The spelling of 13247916 in words is "thirteen million, two hundred forty-seven thousand, nine hundred sixteen".