12652978 has 8 divisors (see below), whose sum is σ = 20439468. Its totient is φ = 5839824.

The previous prime is 12652957. The next prime is 12652987. The reversal of 12652978 is 87925621.

It can be written as a sum of positive squares in 2 ways, for example, as 12652249 + 729 = 3557^2 + 27^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 12652978.

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, 243301 + ... + 243352.

Almost surely, 2^12652978 is an apocalyptic number.

12652978 is a deficient number, since it is larger than the sum of its proper divisors (7786490).

12652978 is a wasteful number, since it uses less digits than its factorization.

12652978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486668.

The product of its digits is 60480, while the sum is 40.

The square root of 12652978 is about 3557.1024725189. The cubic root of 12652978 is about 233.0223535198.

The spelling of 12652978 in words is "twelve million, six hundred fifty-two thousand, nine hundred seventy-eight".