13472639 has 2 divisors, whose sum is σ = 13472640. Its totient is φ = 13472638.

The previous prime is 13472611. The next prime is 13472647. The reversal of 13472639 is 93627431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13472639 - 2²⁰ = 12424063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13472599 and 13472608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13472609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6736319 + 6736320.

It is an arithmetic number, because the mean of its divisors is an integer number (6736320).

Almost surely, 2^13472639 is an apocalyptic number.

13472639 is a deficient number, since it is larger than the sum of its proper divisors (1).

13472639 is an equidigital number, since it uses as much as digits as its factorization.

13472639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 35.

The square root of 13472639 is about 3670.5093651972. The cubic root of 13472639 is about 237.9491864780.

The spelling of 13472639 in words is "thirteen million, four hundred seventy-two thousand, six hundred thirty-nine".