912987 has 12 divisors (see below), whose sum is σ = 1341184. Its totient is φ = 598320.

The previous prime is 912979. The next prime is 912991. The reversal of 912987 is 789219.

It is a happy number.

It is not a de Polignac number, because 912987 - 2³ = 912979 is a prime.

It is a Duffinian number.

912987 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (912187) 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, 283 + ... + 1380.

2⁹¹²⁹⁸⁷ is an apocalyptic number.

912987 is a deficient number, since it is larger than the sum of its proper divisors (428197).

912987 is a wasteful number, since it uses less digits than its factorization.

912987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730 (or 1727 counting only the distinct ones).

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

The square root of 912987 is about 955.5035321756. The cubic root of 912987 is about 97.0111228256.

It can be divided in two parts, 9129 and 87, that added together give a square (9216 = 96²).

The spelling of 912987 in words is "nine hundred twelve thousand, nine hundred eighty-seven".