12990970 has 8 divisors (see below), whose sum is σ = 23383764. Its totient is φ = 5196384.

The previous prime is 12990949. The next prime is 12990979. The reversal of 12990970 is 7909921.

It can be written as a sum of positive squares in 2 ways, for example, as 12680721 + 310249 = 3561^2 + 557^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12990979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649539 + ... + 649558.

Almost surely, 2^12990970 is an apocalyptic number.

12990970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12990970 is a deficient number, since it is larger than the sum of its proper divisors (10392794).

12990970 is a wasteful number, since it uses less digits than its factorization.

12990970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299104.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 12990970 is about 3604.2988222399. The cubic root of 12990970 is about 235.0790137201.

The spelling of 12990970 in words is "twelve million, nine hundred ninety thousand, nine hundred seventy".