12628615 has 8 divisors (see below), whose sum is σ = 15524208. Its totient is φ = 9856320.

The previous prime is 12628613. The next prime is 12628657. The reversal of 12628615 is 51682621.

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

It is not a de Polignac number, because 12628615 - 2¹ = 12628613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12628613) 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, 30597 + ... + 31006.

It is an arithmetic number, because the mean of its divisors is an integer number (1940526).

Almost surely, 2^12628615 is an apocalyptic number.

12628615 is a deficient number, since it is larger than the sum of its proper divisors (2895593).

12628615 is an equidigital number, since it uses as much as digits as its factorization.

12628615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61649.

The product of its digits is 5760, while the sum is 31.

The square root of 12628615 is about 3553.6762655031. The cubic root of 12628615 is about 232.8726978097.

The spelling of 12628615 in words is "twelve million, six hundred twenty-eight thousand, six hundred fifteen".