13620711 has 16 divisors (see below), whose sum is σ = 19837440. Its totient is φ = 8262240.

The previous prime is 13620707. The next prime is 13620713. The reversal of 13620711 is 11702631.

It is not a de Polignac number, because 13620711 - 2² = 13620707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13620713) 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 15 ways as a sum of consecutive naturals, for example, 310 + ... + 5228.

It is an arithmetic number, because the mean of its divisors is an integer number (1239840).

Almost surely, 2^13620711 is an apocalyptic number.

13620711 is a deficient number, since it is larger than the sum of its proper divisors (6216729).

13620711 is a wasteful number, since it uses less digits than its factorization.

13620711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5006.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 13620711 is about 3690.6247438611. The cubic root of 13620711 is about 238.8177447260.

The spelling of 13620711 in words is "thirteen million, six hundred twenty thousand, seven hundred eleven".