12623615 has 4 divisors (see below), whose sum is σ = 15148344. Its totient is φ = 10098888.

The previous prime is 12623609. The next prime is 12623621. The reversal of 12623615 is 51632621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51632621 = 17 ⋅3037213.

It is an interprime number because it is at equal distance from previous prime (12623609) and next prime (12623621).

It is a cyclic number.

It is not a de Polignac number, because 12623615 - 2¹⁰ = 12622591 is a prime.

It is a super-3 number, since 3×12623615³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262357 + ... + 1262366.

It is an arithmetic number, because the mean of its divisors is an integer number (3787086).

Almost surely, 2^12623615 is an apocalyptic number.

12623615 is a deficient number, since it is larger than the sum of its proper divisors (2524729).

12623615 is an equidigital number, since it uses as much as digits as its factorization.

12623615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524728.

The product of its digits is 2160, while the sum is 26.

The square root of 12623615 is about 3552.9726990226. The cubic root of 12623615 is about 232.8419602825.

The spelling of 12623615 in words is "twelve million, six hundred twenty-three thousand, six hundred fifteen".