12887770 has 16 divisors (see below), whose sum is σ = 26512128. Its totient is φ = 4418640.

The previous prime is 12887767. The next prime is 12887773. The reversal of 12887770 is 7778821.

It is a happy number.

12887770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12887767) and next prime (12887773).

It is not an unprimeable number, because it can be changed into a prime (12887773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91986 + ... + 92125.

It is an arithmetic number, because the mean of its divisors is an integer number (1657008).

Almost surely, 2^12887770 is an apocalyptic number.

12887770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12887770 is an abundant number, since it is smaller than the sum of its proper divisors (13624358).

12887770 is a wasteful number, since it uses less digits than its factorization.

12887770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184125.

The product of its (nonzero) digits is 43904, while the sum is 40.

The square root of 12887770 is about 3589.9540387030. The cubic root of 12887770 is about 234.4548704379.

The spelling of 12887770 in words is "twelve million, eight hundred eighty-seven thousand, seven hundred seventy".