87520877 has 4 divisors (see below), whose sum is σ = 87853920. Its totient is φ = 87187836.

The previous prime is 87520871. The next prime is 87520883. The reversal of 87520877 is 77802578.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (87520871) and next prime (87520883).

It is a cyclic number.

It is not a de Polignac number, because 87520877 - 2⁶ = 87520813 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 (87520871) 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 in 3 ways as a sum of consecutive naturals, for example, 166127 + ... + 166652.

It is an arithmetic number, because the mean of its divisors is an integer number (21963480).

Almost surely, 2^87520877 is an apocalyptic number.

It is an amenable number.

87520877 is a deficient number, since it is larger than the sum of its proper divisors (333043).

87520877 is a wasteful number, since it uses less digits than its factorization.

87520877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333042.

The product of its (nonzero) digits is 219520, while the sum is 44.

The square root of 87520877 is about 9355.2593229691. The cubic root of 87520877 is about 443.9873062004.

The spelling of 87520877 in words is "eighty-seven million, five hundred twenty thousand, eight hundred seventy-seven".