987604785 has 32 divisors (see below), whose sum is σ = 1757132160. Its totient is φ = 526305600.

The previous prime is 987604763. The next prime is 987604811. The reversal of 987604785 is 587406789.

It is not a de Polignac number, because 987604785 - 2⁵ = 987604753 is a prime.

It is a super-2 number, since 2×987604785² = 1950726422709792450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249270 + ... + 253200.

It is an arithmetic number, because the mean of its divisors is an integer number (54910380).

Almost surely, 2^987604785 is an apocalyptic number.

It is an amenable number.

987604785 is a deficient number, since it is larger than the sum of its proper divisors (769527375).

987604785 is a wasteful number, since it uses less digits than its factorization.

987604785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5806 (or 5800 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The square root of 987604785 is about 31426.1799301156. The cubic root of 987604785 is about 995.8510718680.

The spelling of 987604785 in words is "nine hundred eighty-seven million, six hundred four thousand, seven hundred eighty-five".