874767987 has 12 divisors (see below), whose sum is σ = 1263825784. Its totient is φ = 583053120.

The previous prime is 874767983. The next prime is 874767989. The reversal of 874767987 is 789767478.

874767987 is a `hidden beast` number, since 87 + 476 + 7 + 9 + 87 = 666.

It is not a de Polignac number, because 874767987 - 2² = 874767983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (874767983) 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, 55668 + ... + 69630.

Almost surely, 2^874767987 is an apocalyptic number.

874767987 is a deficient number, since it is larger than the sum of its proper divisors (389057797).

874767987 is a wasteful number, since it uses less digits than its factorization.

874767987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20930 (or 20927 counting only the distinct ones).

The product of its digits is 33191424, while the sum is 63.

The square root of 874767987 is about 29576.4769200120. The cubic root of 874767987 is about 956.3810458365.

The spelling of 874767987 in words is "eight hundred seventy-four million, seven hundred sixty-seven thousand, nine hundred eighty-seven".