13623955 has 8 divisors (see below), whose sum is σ = 16790832. Its totient is φ = 10604448.

The previous prime is 13623949. The next prime is 13623959. The reversal of 13623955 is 55932631.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13623955 is a prime.

It is a super-2 number, since 2×13623955² = 371224299684050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13623955.

It is not an unprimeable number, because it can be changed into a prime (13623959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36637 + ... + 37006.

It is an arithmetic number, because the mean of its divisors is an integer number (2098854).

Almost surely, 2^13623955 is an apocalyptic number.

13623955 is a deficient number, since it is larger than the sum of its proper divisors (3166877).

13623955 is an equidigital number, since it uses as much as digits as its factorization.

13623955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73685.

The product of its digits is 24300, while the sum is 34.

The square root of 13623955 is about 3691.0642096826. The cubic root of 13623955 is about 238.8367027003.

The spelling of 13623955 in words is "thirteen million, six hundred twenty-three thousand, nine hundred fifty-five".