76215320 has 16 divisors (see below), whose sum is σ = 171484560. Its totient is φ = 30486112.

The previous prime is 76215319. The next prime is 76215371. The reversal of 76215320 is 2351267.

It is a self number, because there is not a number n which added to its sum of digits gives 76215320.

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 3 ways as a sum of consecutive naturals, for example, 952652 + ... + 952731.

It is an arithmetic number, because the mean of its divisors is an integer number (10717785).

Almost surely, 2^76215320 is an apocalyptic number.

It is an amenable number.

76215320 is an abundant number, since it is smaller than the sum of its proper divisors (95269240).

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

76215320 is a wasteful number, since it uses less digits than its factorization.

76215320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905394 (or 1905390 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 76215320 is about 8730.1386014198. The cubic root of 76215320 is about 423.9820064750.

Adding to 76215320 its reverse (2351267), we get a palindrome (78566587).

The spelling of 76215320 in words is "seventy-six million, two hundred fifteen thousand, three hundred twenty".