13799247 has 64 divisors (see below), whose sum is σ = 24772608. Its totient is φ = 6624000.

The previous prime is 13799209. The next prime is 13799249. The reversal of 13799247 is 74299731.

It is not a de Polignac number, because 13799247 - 2⁸ = 13798991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13799199 and 13799208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13799249) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 293578 + ... + 293624.

It is an arithmetic number, because the mean of its divisors is an integer number (387072).

Almost surely, 2^13799247 is an apocalyptic number.

13799247 is a deficient number, since it is larger than the sum of its proper divisors (10973361).

13799247 is a wasteful number, since it uses less digits than its factorization.

13799247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140.

The product of its digits is 95256, while the sum is 42.

The square root of 13799247 is about 3714.7337724257. The cubic root of 13799247 is about 239.8566678889.

The spelling of 13799247 in words is "thirteen million, seven hundred ninety-nine thousand, two hundred forty-seven".