12711990 has 32 divisors (see below), whose sum is σ = 30606336. Its totient is φ = 3379040.

The previous prime is 12711989. The next prime is 12712003. The reversal of 12711990 is 9911721.

12711990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14299 + ... + 15161.

It is an arithmetic number, because the mean of its divisors is an integer number (956448).

Almost surely, 2^12711990 is an apocalyptic number.

12711990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12711990 is an abundant number, since it is smaller than the sum of its proper divisors (17894346).

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

12711990 is a wasteful number, since it uses less digits than its factorization.

12711990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364.

The product of its (nonzero) digits is 1134, while the sum is 30.

The square root of 12711990 is about 3565.3877769466. The cubic root of 12711990 is about 233.3840547332.

The spelling of 12711990 in words is "twelve million, seven hundred eleven thousand, nine hundred ninety".