87773896 has 72 divisors (see below), whose sum is σ = 198669510. Its totient is φ = 36247680.

The previous prime is 87773857. The next prime is 87773897. The reversal of 87773896 is 69837778.

It can be written as a sum of positive squares in only one way, i.e., 83064996 + 4708900 = 9114^2 + 2170^2 .

It is not an unprimeable number, because it can be changed into a prime (87773897) 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 17 ways as a sum of consecutive naturals, for example, 376596 + ... + 376828.

Almost surely, 2^87773896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87773896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99334755).

87773896 is an abundant number, since it is smaller than the sum of its proper divisors (110895614).

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

87773896 is a wasteful number, since it uses less digits than its factorization.

87773896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 273 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 55.

The square root of 87773896 is about 9368.7723848965. The cubic root of 87773896 is about 444.4147438116.

The spelling of 87773896 in words is "eighty-seven million, seven hundred seventy-three thousand, eight hundred ninety-six".