987586877 has 2 divisors, whose sum is σ = 987586878. Its totient is φ = 987586876.

The previous prime is 987586843. The next prime is 987586879. The reversal of 987586877 is 778685789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 920576281 + 67010596 = 30341^2 + 8186^2 .

It is a cyclic number.

It is not a de Polignac number, because 987586877 - 2¹⁰ = 987585853 is a prime.

It is a super-2 number, since 2×987586877² = 1950655679245226258, which contains 22 as substring.

Together with 987586879, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (987586879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493793438 + 493793439.

It is an arithmetic number, because the mean of its divisors is an integer number (493793439).

Almost surely, 2^987586877 is an apocalyptic number.

It is an amenable number.

987586877 is a deficient number, since it is larger than the sum of its proper divisors (1).

987586877 is an equidigital number, since it uses as much as digits as its factorization.

987586877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47416320, while the sum is 65.

The square root of 987586877 is about 31425.8950071434. The cubic root of 987586877 is about 995.8450526557.

The spelling of 987586877 in words is "nine hundred eighty-seven million, five hundred eighty-six thousand, eight hundred seventy-seven".