987880724 has 6 divisors (see below), whose sum is σ = 1728791274. Its totient is φ = 493940360.

The previous prime is 987880721. The next prime is 987880739. The reversal of 987880724 is 427088789.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 585156100 + 402724624 = 24190^2 + 20068^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987880721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123485087 + ... + 123485094.

It is an arithmetic number, because the mean of its divisors is an integer number (288131879).

Almost surely, 2^987880724 is an apocalyptic number.

It is an amenable number.

987880724 is a deficient number, since it is larger than the sum of its proper divisors (740910550).

987880724 is a wasteful number, since it uses less digits than its factorization.

987880724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246970185 (or 246970183 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 53.

The square root of 987880724 is about 31430.5698962014. The cubic root of 987880724 is about 995.9438109084.

The spelling of 987880724 in words is "nine hundred eighty-seven million, eight hundred eighty thousand, seven hundred twenty-four".