76212321 has 8 divisors (see below), whose sum is σ = 101894784. Its totient is φ = 50669040.

The previous prime is 76212307. The next prime is 76212359. The reversal of 76212321 is 12321267.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 76212321 - 2⁵ = 76212289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76212291 and 76212300.

It is not an unprimeable number, because it can be changed into a prime (76212361) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 33510 + ... + 35711.

It is an arithmetic number, because the mean of its divisors is an integer number (12736848).

Almost surely, 2^76212321 is an apocalyptic number.

It is an amenable number.

76212321 is a deficient number, since it is larger than the sum of its proper divisors (25682463).

76212321 is a wasteful number, since it uses less digits than its factorization.

76212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69591.

The product of its digits is 1008, while the sum is 24.

The square root of 76212321 is about 8729.9668384250. The cubic root of 76212321 is about 423.9764453065.

Adding to 76212321 its reverse (12321267), we get a palindrome (88533588).

The spelling of 76212321 in words is "seventy-six million, two hundred twelve thousand, three hundred twenty-one".