12890790 has 96 divisors (see below), whose sum is σ = 37908000. Its totient is φ = 3010560.

The previous prime is 12890789. The next prime is 12890791. The reversal of 12890790 is 9709821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12890789) and next prime (12890791).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12890791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28486 + ... + 28934.

It is an arithmetic number, because the mean of its divisors is an integer number (394875).

Almost surely, 2^12890790 is an apocalyptic number.

12890790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12890790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18954000).

12890790 is an abundant number, since it is smaller than the sum of its proper divisors (25017210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12890790 is a wasteful number, since it uses less digits than its factorization.

12890790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 12890790 is about 3590.3746322633. The cubic root of 12890790 is about 234.4731823312.

The spelling of 12890790 in words is "twelve million, eight hundred ninety thousand, seven hundred ninety".