987315938 has 8 divisors (see below), whose sum is σ = 1692541632. Its totient is φ = 423135396.

The previous prime is 987315929. The next prime is 987315941. The reversal of 987315938 is 839513789.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×987315938² = 1949585522857639688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 987315938.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35261270 + ... + 35261297.

It is an arithmetic number, because the mean of its divisors is an integer number (211567704).

Almost surely, 2^987315938 is an apocalyptic number.

987315938 is a deficient number, since it is larger than the sum of its proper divisors (705225694).

987315938 is a wasteful number, since it uses less digits than its factorization.

987315938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70522576.

The product of its digits is 1632960, while the sum is 53.

The square root of 987315938 is about 31421.5839511633. The cubic root of 987315938 is about 995.7539761314.

The spelling of 987315938 in words is "nine hundred eighty-seven million, three hundred fifteen thousand, nine hundred thirty-eight".