13992469 has 4 divisors (see below), whose sum is σ = 14065920. Its totient is φ = 13919020.

The previous prime is 13992463. The next prime is 13992509. The reversal of 13992469 is 96429931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13992469 - 2⁵ = 13992437 is a prime.

It is a super-2 number, since 2×13992469² = 391578377431922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13992463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36439 + ... + 36820.

It is an arithmetic number, because the mean of its divisors is an integer number (3516480).

Almost surely, 2^13992469 is an apocalyptic number.

It is an amenable number.

13992469 is a deficient number, since it is larger than the sum of its proper divisors (73451).

13992469 is an equidigital number, since it uses as much as digits as its factorization.

13992469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73450.

The product of its digits is 104976, while the sum is 43.

The square root of 13992469 is about 3740.6508791920. The cubic root of 13992469 is about 240.9710025200.

The spelling of 13992469 in words is "thirteen million, nine hundred ninety-two thousand, four hundred sixty-nine".