87287796 has 36 divisors (see below), whose sum is σ = 228255300. Its totient is φ = 28092288.

The previous prime is 87287791. The next prime is 87287797. The reversal of 87287796 is 69778278.

It can be written as a sum of positive squares in 2 ways, for example, as 34928100 + 52359696 = 5910^2 + 7236^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87287791) 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 11 ways as a sum of consecutive naturals, for example, 40761 + ... + 42848.

It is an arithmetic number, because the mean of its divisors is an integer number (6340425).

Almost surely, 2^87287796 is an apocalyptic number.

It is an amenable number.

87287796 is an abundant number, since it is smaller than the sum of its proper divisors (140967504).

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

87287796 is a wasteful number, since it uses less digits than its factorization.

87287796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83648 (or 83643 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The square root of 87287796 is about 9342.7938005716. The cubic root of 87287796 is about 443.5928212489.

The spelling of 87287796 in words is "eighty-seven million, two hundred eighty-seven thousand, seven hundred ninety-six".