76855572 has 72 divisors (see below), whose sum is σ = 212389632. Its totient is φ = 23328000.

The previous prime is 76855567. The next prime is 76855609. The reversal of 76855572 is 27555867.

76855572 is a `hidden beast` number, since 76 + 8 + 5 + 5 + 572 = 666.

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 23 ways as a sum of consecutive naturals, for example, 16947 + ... + 20997.

It is an arithmetic number, because the mean of its divisors is an integer number (2949856).

Almost surely, 2^76855572 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 76855572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106194816).

76855572 is an abundant number, since it is smaller than the sum of its proper divisors (135534060).

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

76855572 is a wasteful number, since it uses less digits than its factorization.

76855572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4109 (or 4104 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 76855572 is about 8766.7309756830. The cubic root of 76855572 is about 425.1659273675.

The spelling of 76855572 in words is "seventy-six million, eight hundred fifty-five thousand, five hundred seventy-two".