76087220 has 72 divisors (see below), whose sum is σ = 183399552. Its totient is φ = 26445760.

The previous prime is 76087217. The next prime is 76087279. The reversal of 76087220 is 2278067.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54977 + ... + 56343.

It is an arithmetic number, because the mean of its divisors is an integer number (2547216).

Almost surely, 2^76087220 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 76087220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91699776).

76087220 is an abundant number, since it is smaller than the sum of its proper divisors (107312332).

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

76087220 is a wasteful number, since it uses less digits than its factorization.

76087220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421 (or 1408 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 76087220 is about 8722.7988627504. The cubic root of 76087220 is about 423.7443353083.

The spelling of 76087220 in words is "seventy-six million, eighty-seven thousand, two hundred twenty".