74766921 has 8 divisors (see below), whose sum is σ = 100717344. Its totient is φ = 49330560.

The previous prime is 74766917. The next prime is 74766931. The reversal of 74766921 is 12966747.

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

It is not a de Polignac number, because 74766921 - 2² = 74766917 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74766911) 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, 128175 + ... + 128756.

It is an arithmetic number, because the mean of its divisors is an integer number (12589668).

Almost surely, 2^74766921 is an apocalyptic number.

It is an amenable number.

74766921 is a deficient number, since it is larger than the sum of its proper divisors (25950423).

74766921 is a wasteful number, since it uses less digits than its factorization.

74766921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257031.

The product of its digits is 127008, while the sum is 42.

The square root of 74766921 is about 8646.7867442189. The cubic root of 74766921 is about 421.2790205626.

The spelling of 74766921 in words is "seventy-four million, seven hundred sixty-six thousand, nine hundred twenty-one".