13699965 has 8 divisors (see below), whose sum is σ = 21919968. Its totient is φ = 7306640.

The previous prime is 13699957. The next prime is 13699981. The reversal of 13699965 is 56999631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13699965 - 2³ = 13699957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456651 + ... + 456680.

It is an arithmetic number, because the mean of its divisors is an integer number (2739996).

Almost surely, 2^13699965 is an apocalyptic number.

13699965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13699965 is a deficient number, since it is larger than the sum of its proper divisors (8220003).

13699965 is an equidigital number, since it uses as much as digits as its factorization.

13699965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913339.

The product of its digits is 393660, while the sum is 48.

The square root of 13699965 is about 3701.3463766581. The cubic root of 13699965 is about 239.2800473045.

The spelling of 13699965 in words is "thirteen million, six hundred ninety-nine thousand, nine hundred sixty-five".