13983699 has 4 divisors (see below), whose sum is σ = 18644936. Its totient is φ = 9322464.

The previous prime is 13983691. The next prime is 13983703. The reversal of 13983699 is 99638931.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13983699 - 2³ = 13983691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13983691) 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, 2330614 + ... + 2330619.

It is an arithmetic number, because the mean of its divisors is an integer number (4661234).

Almost surely, 2^13983699 is an apocalyptic number.

13983699 is a deficient number, since it is larger than the sum of its proper divisors (4661237).

13983699 is an equidigital number, since it uses as much as digits as its factorization.

13983699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4661236.

The product of its digits is 314928, while the sum is 48.

The square root of 13983699 is about 3739.4784395688. The cubic root of 13983699 is about 240.9206478765.

It can be divided in two parts, 139 and 83699, that added together give a palindrome (83838).

The spelling of 13983699 in words is "thirteen million, nine hundred eighty-three thousand, six hundred ninety-nine".