12990650 has 12 divisors (see below), whose sum is σ = 24162702. Its totient is φ = 5196240.

The previous prime is 12990647. The next prime is 12990667. The reversal of 12990650 is 5609921.

12990650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 10042561 + 2948089 = 3169^2 + 1717^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129857 + ... + 129956.

Almost surely, 2^12990650 is an apocalyptic number.

12990650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12990650 is a deficient number, since it is larger than the sum of its proper divisors (11172052).

12990650 is a wasteful number, since it uses less digits than its factorization.

12990650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259825 (or 259820 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 12990650 is about 3604.2544305307. The cubic root of 12990650 is about 235.0770835100.

The spelling of 12990650 in words is "twelve million, nine hundred ninety thousand, six hundred fifty".