12905650 has 12 divisors (see below), whose sum is σ = 24004602. Its totient is φ = 5162240.

The previous prime is 12905647. The next prime is 12905657. The reversal of 12905650 is 5650921.

12905650 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 12595401 + 310249 = 3549^2 + 557^2 .

It is a super-3 number, since 3×12905650³ (a number of 22 digits) contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12905657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129007 + ... + 129106.

Almost surely, 2^12905650 is an apocalyptic number.

12905650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12905650 is a deficient number, since it is larger than the sum of its proper divisors (11098952).

12905650 is a wasteful number, since it uses less digits than its factorization.

12905650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258125 (or 258120 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 12905650 is about 3592.4434581493. The cubic root of 12905650 is about 234.5632449134.

The spelling of 12905650 in words is "twelve million, nine hundred five thousand, six hundred fifty".