12887650 has 24 divisors (see below), whose sum is σ = 24193764. Its totient is φ = 5107200.

The previous prime is 12887627. The next prime is 12887657. The reversal of 12887650 is 5678821.

It can be written as a sum of positive squares in 6 ways, for example, as 1671849 + 11215801 = 1293^2 + 3349^2 .

It is not an unprimeable number, because it can be changed into a prime (12887657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4510 + ... + 6790.

Almost surely, 2^12887650 is an apocalyptic number.

12887650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12887650 is a deficient number, since it is larger than the sum of its proper divisors (11306114).

12887650 is a wasteful number, since it uses less digits than its factorization.

12887650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406 (or 2401 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 12887650 is about 3589.9373253582. The cubic root of 12887650 is about 234.4541427539.

It can be divided in two parts, 128 and 87650, that added together give a palindrome (87778).

The spelling of 12887650 in words is "twelve million, eight hundred eighty-seven thousand, six hundred fifty".