87756822 has 96 divisors (see below), whose sum is σ = 216395712. Its totient is φ = 25546752.

The previous prime is 87756803. The next prime is 87756847. The reversal of 87756822 is 22865778.

87756822 is a `hidden beast` number, since 87 + 7 + 568 + 2 + 2 = 666.

It is a plaindrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 260238 + ... + 260574.

It is an arithmetic number, because the mean of its divisors is an integer number (2254122).

Almost surely, 2^87756822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87756822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108197856).

87756822 is an abundant number, since it is smaller than the sum of its proper divisors (128638890).

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

87756822 is a wasteful number, since it uses less digits than its factorization.

87756822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 419 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 87756822 is about 9367.8611219424. The cubic root of 87756822 is about 444.3859257166.

The spelling of 87756822 in words is "eighty-seven million, seven hundred fifty-six thousand, eight hundred twenty-two".