12975578 has 32 divisors (see below), whose sum is σ = 24520320. Its totient is φ = 5002560.

The previous prime is 12975563. The next prime is 12975623. The reversal of 12975578 is 87557921.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16400 + ... + 17172.

It is an arithmetic number, because the mean of its divisors is an integer number (766260).

Almost surely, 2^12975578 is an apocalyptic number.

12975578 is a deficient number, since it is larger than the sum of its proper divisors (11544742).

12975578 is a wasteful number, since it uses less digits than its factorization.

12975578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902.

The product of its digits is 176400, while the sum is 44.

The square root of 12975578 is about 3602.1629613331. The cubic root of 12975578 is about 234.9861346882.

The spelling of 12975578 in words is "twelve million, nine hundred seventy-five thousand, five hundred seventy-eight".