76929221 has 8 divisors (see below), whose sum is σ = 77755200. Its totient is φ = 76108032.

The previous prime is 76929211. The next prime is 76929247. The reversal of 76929221 is 12292967.

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

It is a cyclic number.

It is not a de Polignac number, because 76929221 - 2¹⁰ = 76928197 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 (76929211) 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 7 ways as a sum of consecutive naturals, for example, 37406 + ... + 39408.

It is an arithmetic number, because the mean of its divisors is an integer number (9719400).

Almost surely, 2^76929221 is an apocalyptic number.

It is an amenable number.

76929221 is a deficient number, since it is larger than the sum of its proper divisors (825979).

76929221 is a wasteful number, since it uses less digits than its factorization.

76929221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395.

The product of its digits is 27216, while the sum is 38.

The square root of 76929221 is about 8770.9304523522. The cubic root of 76929221 is about 425.3016930541.

The spelling of 76929221 in words is "seventy-six million, nine hundred twenty-nine thousand, two hundred twenty-one".