987100772 has 24 divisors (see below), whose sum is σ = 1982687616. Its totient is φ = 421224768.

The previous prime is 987100759. The next prime is 987100783. The reversal of 987100772 is 277001789.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69128 + ... + 82175.

It is an arithmetic number, because the mean of its divisors is an integer number (82611984).

Almost surely, 2^987100772 is an apocalyptic number.

It is an amenable number.

987100772 is an abundant number, since it is smaller than the sum of its proper divisors (995586844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

987100772 is a wasteful number, since it uses less digits than its factorization.

987100772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151547 (or 151545 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 41.

The square root of 987100772 is about 31418.1599079259. The cubic root of 987100772 is about 995.6816359082.

The spelling of 987100772 in words is "nine hundred eighty-seven million, one hundred thousand, seven hundred seventy-two".