13070639 has 2 divisors, whose sum is σ = 13070640. Its totient is φ = 13070638.

The previous prime is 13070627. The next prime is 13070719. The reversal of 13070639 is 93607031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13070639 - 2¹⁶ = 13005103 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13070609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6535319 + 6535320.

It is an arithmetic number, because the mean of its divisors is an integer number (6535320).

Almost surely, 2^13070639 is an apocalyptic number.

13070639 is a deficient number, since it is larger than the sum of its proper divisors (1).

13070639 is an equidigital number, since it uses as much as digits as its factorization.

13070639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 13070639 is about 3615.3338711660. Note that the first 3 decimals coincide. The cubic root of 13070639 is about 235.5585867043.

The spelling of 13070639 in words is "thirteen million, seventy thousand, six hundred thirty-nine".