12617916 has 24 divisors (see below), whose sum is σ = 29643600. Its totient is φ = 4177152.

The previous prime is 12617903. The next prime is 12617921. The reversal of 12617916 is 61971621.

12617916 = T₁₂₉ + T₁₃₀ + ... + T₄₂₆.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1741 + ... + 5316.

It is an arithmetic number, because the mean of its divisors is an integer number (1235150).

Almost surely, 2^12617916 is an apocalyptic number.

It is an amenable number.

12617916 is an abundant number, since it is smaller than the sum of its proper divisors (17025684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12617916 is a wasteful number, since it uses less digits than its factorization.

12617916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7213 (or 7211 counting only the distinct ones).

The product of its digits is 4536, while the sum is 33.

The square root of 12617916 is about 3552.1706040110. The cubic root of 12617916 is about 232.8069157497.

The spelling of 12617916 in words is "twelve million, six hundred seventeen thousand, nine hundred sixteen".