13970939 has 2 divisors, whose sum is σ = 13970940. Its totient is φ = 13970938.

The previous prime is 13970933. The next prime is 13970951. The reversal of 13970939 is 93907931.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13970939 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13970896 and 13970905.

It is not a weakly prime, because it can be changed into another prime (13970933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6985469 + 6985470.

It is an arithmetic number, because the mean of its divisors is an integer number (6985470).

Almost surely, 2^13970939 is an apocalyptic number.

13970939 is a deficient number, since it is larger than the sum of its proper divisors (1).

13970939 is an equidigital number, since it uses as much as digits as its factorization.

13970939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45927, while the sum is 41.

The square root of 13970939 is about 3737.7719299069. The cubic root of 13970939 is about 240.8473462657.

The spelling of 13970939 in words is "thirteen million, nine hundred seventy thousand, nine hundred thirty-nine".