13620699 has 12 divisors (see below), whose sum is σ = 20206576. Its totient is φ = 8834832.

The previous prime is 13620697. The next prime is 13620703. The reversal of 13620699 is 99602631.

It is not a de Polignac number, because 13620699 - 2¹ = 13620697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13620697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20119 + ... + 20784.

Almost surely, 2^13620699 is an apocalyptic number.

13620699 is a deficient number, since it is larger than the sum of its proper divisors (6585877).

13620699 is a wasteful number, since it uses less digits than its factorization.

13620699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40946 (or 40943 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 13620699 is about 3690.6231181198. The cubic root of 13620699 is about 238.8176745922.

The spelling of 13620699 in words is "thirteen million, six hundred twenty thousand, six hundred ninety-nine".