87802887 has 8 divisors (see below), whose sum is σ = 120234736. Its totient is φ = 56953152.

The previous prime is 87802877. The next prime is 87802903. The reversal of 87802887 is 78820878.

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

It is not a de Polignac number, because 87802887 - 2¹⁵ = 87770119 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 (87802817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395398 + ... + 395619.

It is an arithmetic number, because the mean of its divisors is an integer number (15029342).

Almost surely, 2^87802887 is an apocalyptic number.

87802887 is a deficient number, since it is larger than the sum of its proper divisors (32431849).

87802887 is a wasteful number, since it uses less digits than its factorization.

87802887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791057.

The product of its (nonzero) digits is 401408, while the sum is 48.

The square root of 87802887 is about 9370.3194716082. The cubic root of 87802887 is about 444.4636672774.

Subtracting from 87802887 its reverse (78820878), we obtain a square (8982009 = 2997²).

The spelling of 87802887 in words is "eighty-seven million, eight hundred two thousand, eight hundred eighty-seven".