13239967 has 12 divisors (see below), whose sum is σ = 14457000. Its totient is φ = 12119328.

The previous prime is 13239949. The next prime is 13239997. The reversal of 13239967 is 76993231.

13239967 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 13239967 - 2¹⁵ = 13207199 is a prime.

It is a super-2 number, since 2×13239967² = 350593452322178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13239997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26284 + ... + 26782.

It is an arithmetic number, because the mean of its divisors is an integer number (1204750).

Almost surely, 2^13239967 is an apocalyptic number.

13239967 is a deficient number, since it is larger than the sum of its proper divisors (1217033).

13239967 is a wasteful number, since it uses less digits than its factorization.

13239967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 669 counting only the distinct ones).

The product of its digits is 61236, while the sum is 40.

The square root of 13239967 is about 3638.6765451191. The cubic root of 13239967 is about 236.5714331730.

The spelling of 13239967 in words is "thirteen million, two hundred thirty-nine thousand, nine hundred sixty-seven".