987897752 has 8 divisors (see below), whose sum is σ = 1852308300. Its totient is φ = 493948872.

The previous prime is 987897749. The next prime is 987897767. The reversal of 987897752 is 257798789.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×987897752³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61743602 + ... + 61743617.

Almost surely, 2^987897752 is an apocalyptic number.

It is an amenable number.

987897752 is a deficient number, since it is larger than the sum of its proper divisors (864410548).

987897752 is a wasteful number, since it uses less digits than its factorization.

987897752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123487225 (or 123487221 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 62.

The square root of 987897752 is about 31430.8407778093. The cubic root of 987897752 is about 995.9495332031.

The spelling of 987897752 in words is "nine hundred eighty-seven million, eight hundred ninety-seven thousand, seven hundred fifty-two".