87876980 has 12 divisors (see below), whose sum is σ = 184541700. Its totient is φ = 35150784.

The previous prime is 87876977. The next prime is 87876983. The reversal of 87876980 is 8967878.

It is an interprime number because it is at equal distance from previous prime (87876977) and next prime (87876983).

It can be written as a sum of positive squares in 2 ways, for example, as 24068836 + 63808144 = 4906^2 + 7988^2 .

It is a super-2 number, since 2×87876980² = 15444727227840800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87876983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2196905 + ... + 2196944.

It is an arithmetic number, because the mean of its divisors is an integer number (15378475).

Almost surely, 2^87876980 is an apocalyptic number.

It is an amenable number.

87876980 is an abundant number, since it is smaller than the sum of its proper divisors (96664720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87876980 is a wasteful number, since it uses less digits than its factorization.

87876980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393858 (or 4393856 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 53.

The square root of 87876980 is about 9374.2722384194. The cubic root of 87876980 is about 444.5886532498.

The spelling of 87876980 in words is "eighty-seven million, eight hundred seventy-six thousand, nine hundred eighty".