12487790 has 16 divisors (see below), whose sum is σ = 25689312. Its totient is φ = 4281504.

The previous prime is 12487789. The next prime is 12487793. The reversal of 12487790 is 9778421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12487793) 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, 89129 + ... + 89268.

It is an arithmetic number, because the mean of its divisors is an integer number (1605582).

Almost surely, 2^12487790 is an apocalyptic number.

12487790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12487790 is an abundant number, since it is smaller than the sum of its proper divisors (13201522).

12487790 is a wasteful number, since it uses less digits than its factorization.

12487790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178411.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 12487790 is about 3533.8067292935. The cubic root of 12487790 is about 232.0038519971.

The spelling of 12487790 in words is "twelve million, four hundred eighty-seven thousand, seven hundred ninety".