987699877 has 8 divisors (see below), whose sum is σ = 1009518336. Its totient is φ = 965914992.

The previous prime is 987699841. The next prime is 987699899. The reversal of 987699877 is 778996789.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 987699877 - 2¹⁹ = 987175589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987699077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56563 + ... + 71935.

It is an arithmetic number, because the mean of its divisors is an integer number (126189792).

Almost surely, 2^987699877 is an apocalyptic number.

It is an amenable number.

987699877 is a deficient number, since it is larger than the sum of its proper divisors (21818459).

987699877 is a wasteful number, since it uses less digits than its factorization.

987699877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16787.

The product of its digits is 96018048, while the sum is 70.

The square root of 987699877 is about 31427.6928360960. The cubic root of 987699877 is about 995.8830328415.

The spelling of 987699877 in words is "nine hundred eighty-seven million, six hundred ninety-nine thousand, eight hundred seventy-seven".