987806164 has 12 divisors (see below), whose sum is σ = 1728889344. Its totient is φ = 493837784.

The previous prime is 987806137. The next prime is 987806167. The reversal of 987806164 is 461608789.

It is a super-2 number, since 2×987806164² = 1951522035272789792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987806167) 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, 37239 + ... + 57985.

It is an arithmetic number, because the mean of its divisors is an integer number (144074112).

Almost surely, 2^987806164 is an apocalyptic number.

It is an amenable number.

987806164 is a deficient number, since it is larger than the sum of its proper divisors (741083180).

987806164 is a wasteful number, since it uses less digits than its factorization.

987806164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32654 (or 32652 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 987806164 is about 31429.3837674238. The cubic root of 987806164 is about 995.9187540917.

The spelling of 987806164 in words is "nine hundred eighty-seven million, eight hundred six thousand, one hundred sixty-four".