76336221 has 16 divisors (see below), whose sum is σ = 109773440. Its totient is φ = 46906560.

The previous prime is 76336181. The next prime is 76336231. The reversal of 76336221 is 12263367.

It is not a de Polignac number, because 76336221 - 2⁶ = 76336157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76336231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40776 + ... + 42606.

It is an arithmetic number, because the mean of its divisors is an integer number (6860840).

Almost surely, 2^76336221 is an apocalyptic number.

It is an amenable number.

76336221 is a deficient number, since it is larger than the sum of its proper divisors (33437219).

76336221 is a wasteful number, since it uses less digits than its factorization.

76336221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916.

The product of its digits is 9072, while the sum is 30.

The square root of 76336221 is about 8737.0602035238. The cubic root of 76336221 is about 424.2060767704.

Adding to 76336221 its reverse (12263367), we get a palindrome (88599588).

The spelling of 76336221 in words is "seventy-six million, three hundred thirty-six thousand, two hundred twenty-one".