12580978 has 16 divisors (see below), whose sum is σ = 19641600. Its totient is φ = 6037200.

The previous prime is 12580963. The next prime is 12580993. The reversal of 12580978 is 87908521.

It is an interprime number because it is at equal distance from previous prime (12580963) and next prime (12580993).

It is a self number, because there is not a number n which added to its sum of digits gives 12580978.

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, 7348 + ... + 8896.

It is an arithmetic number, because the mean of its divisors is an integer number (1227600).

Almost surely, 2^12580978 is an apocalyptic number.

12580978 is a deficient number, since it is larger than the sum of its proper divisors (7060622).

12580978 is a wasteful number, since it uses less digits than its factorization.

12580978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 12580978 is about 3546.9674371215. The cubic root of 12580978 is about 232.5795187978.

The spelling of 12580978 in words is "twelve million, five hundred eighty thousand, nine hundred seventy-eight".