13929523 has 2 divisors, whose sum is σ = 13929524. Its totient is φ = 13929522.

The previous prime is 13929497. The next prime is 13929529. The reversal of 13929523 is 32592931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13929523 - 2¹³ = 13921331 is a prime.

It is a super-2 number, since 2×13929523² = 388063222015058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13929529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6964761 + 6964762.

It is an arithmetic number, because the mean of its divisors is an integer number (6964762).

Almost surely, 2^13929523 is an apocalyptic number.

13929523 is a deficient number, since it is larger than the sum of its proper divisors (1).

13929523 is an equidigital number, since it uses as much as digits as its factorization.

13929523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 34.

The square root of 13929523 is about 3732.2276189965. The cubic root of 13929523 is about 240.6091182637.

The spelling of 13929523 in words is "thirteen million, nine hundred twenty-nine thousand, five hundred twenty-three".