987923476 has 12 divisors (see below), whose sum is σ = 1729333620. Its totient is φ = 493828160.

The previous prime is 987923467. The next prime is 987923477. The reversal of 987923476 is 674329789.

It can be written as a sum of positive squares in 2 ways, for example, as 608608900 + 379314576 = 24670^2 + 19476^2 .

It is a pancake number, because a pancake can be divided into 987923476 parts by 44450 straight cuts.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987923477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15715 + ... + 47146.

It is an arithmetic number, because the mean of its divisors is an integer number (144111135).

Almost surely, 2^987923476 is an apocalyptic number.

987923476 is the 15716-th decagonal number.

It is an amenable number.

987923476 is a deficient number, since it is larger than the sum of its proper divisors (741410144).

987923476 is a wasteful number, since it uses less digits than its factorization.

987923476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66794 (or 66792 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 55.

The square root of 987923476 is about 31431.2499910519. The cubic root of 987923476 is about 995.9581776819.

The spelling of 987923476 in words is "nine hundred eighty-seven million, nine hundred twenty-three thousand, four hundred seventy-six".