987404 has 12 divisors (see below), whose sum is σ = 1885128. Its totient is φ = 448800.

The previous prime is 987391. The next prime is 987433. The reversal of 987404 is 404789.

It is a happy number.

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, 11177 + ... + 11264.

It is an arithmetic number, because the mean of its divisors is an integer number (157094).

2⁹⁸⁷⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

987404 is a deficient number, since it is larger than the sum of its proper divisors (897724).

987404 is a wasteful number, since it uses less digits than its factorization.

987404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22456 (or 22454 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 987404 is about 993.6820417015. The cubic root of 987404 is about 99.5783580124.

The spelling of 987404 in words is "nine hundred eighty-seven thousand, four hundred four".