987880801 has 2 divisors, whose sum is σ = 987880802. Its totient is φ = 987880800.

The previous prime is 987880781. The next prime is 987880847. The reversal of 987880801 is 108088789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 913490176 + 74390625 = 30224^2 + 8625^2 .

It is a cyclic number.

It is not a de Polignac number, because 987880801 - 2⁵ = 987880769 is a prime.

It is not a weakly prime, because it can be changed into another prime (987880891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493940400 + 493940401.

It is an arithmetic number, because the mean of its divisors is an integer number (493940401).

Almost surely, 2^987880801 is an apocalyptic number.

It is an amenable number.

987880801 is a deficient number, since it is larger than the sum of its proper divisors (1).

987880801 is an equidigital number, since it uses as much as digits as its factorization.

987880801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 49.

The square root of 987880801 is about 31430.5711211235. The cubic root of 987880801 is about 995.9438367846.

The spelling of 987880801 in words is "nine hundred eighty-seven million, eight hundred eighty thousand, eight hundred one".