13247998 has 16 divisors (see below), whose sum is σ = 21611664. Its totient is φ = 6065280.

The previous prime is 13247989. The next prime is 13248017. The reversal of 13247998 is 89974231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4008 + ... + 6523.

It is an arithmetic number, because the mean of its divisors is an integer number (1350729).

Almost surely, 2^13247998 is an apocalyptic number.

13247998 is a deficient number, since it is larger than the sum of its proper divisors (8363666).

13247998 is a wasteful number, since it uses less digits than its factorization.

13247998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10587.

The product of its digits is 108864, while the sum is 43.

The square root of 13247998 is about 3639.7799384029. The cubic root of 13247998 is about 236.6192560809.

The spelling of 13247998 in words is "thirteen million, two hundred forty-seven thousand, nine hundred ninety-eight".