13986923 has 2 divisors, whose sum is σ = 13986924. Its totient is φ = 13986922.

The previous prime is 13986901. The next prime is 13986943. The reversal of 13986923 is 32968931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13986923 - 2²⁰ = 12938347 is a prime.

It is not a weakly prime, because it can be changed into another prime (13986943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6993461 + 6993462.

It is an arithmetic number, because the mean of its divisors is an integer number (6993462).

Almost surely, 2^13986923 is an apocalyptic number.

13986923 is a deficient number, since it is larger than the sum of its proper divisors (1).

13986923 is an equidigital number, since it uses as much as digits as its factorization.

13986923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 13986923 is about 3739.9094908834. The cubic root of 13986923 is about 240.9391615398.

The spelling of 13986923 in words is "thirteen million, nine hundred eighty-six thousand, nine hundred twenty-three".