13929453 has 6 divisors (see below), whose sum is σ = 20120334. Its totient is φ = 9286296.

The previous prime is 13929449. The next prime is 13929457. The reversal of 13929453 is 35492931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13929449) and next prime (13929457).

It can be written as a sum of positive squares in only one way, i.e., 11410884 + 2518569 = 3378^2 + 1587^2 .

It is not a de Polignac number, because 13929453 - 2² = 13929449 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13929457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 773850 + ... + 773867.

It is an arithmetic number, because the mean of its divisors is an integer number (3353389).

Almost surely, 2^13929453 is an apocalyptic number.

It is an amenable number.

13929453 is a deficient number, since it is larger than the sum of its proper divisors (6190881).

13929453 is a wasteful number, since it uses less digits than its factorization.

13929453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547723 (or 1547720 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 13929453 is about 3732.2182412072. The cubic root of 13929453 is about 240.6087152188.

It can be divided in two parts, 139 and 29453, that added together give a palindrome (29592).

The spelling of 13929453 in words is "thirteen million, nine hundred twenty-nine thousand, four hundred fifty-three".