74619221 has 8 divisors (see below), whose sum is σ = 78067584. Its totient is φ = 71248480.

The previous prime is 74619203. The next prime is 74619271. The reversal of 74619221 is 12291647.

It is a happy number.

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 74619221 - 2¹⁰ = 74618197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74619271) 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, 17435 + ... + 21288.

It is an arithmetic number, because the mean of its divisors is an integer number (9758448).

Almost surely, 2^74619221 is an apocalyptic number.

It is an amenable number.

74619221 is a deficient number, since it is larger than the sum of its proper divisors (3448363).

74619221 is a wasteful number, since it uses less digits than its factorization.

74619221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38811.

The product of its digits is 6048, while the sum is 32.

The square root of 74619221 is about 8638.2417771211. The cubic root of 74619221 is about 421.0014293108.

The spelling of 74619221 in words is "seventy-four million, six hundred nineteen thousand, two hundred twenty-one".