74076221 has 4 divisors (see below), whose sum is σ = 74566944. Its totient is φ = 73585500.

The previous prime is 74076209. The next prime is 74076227. The reversal of 74076221 is 12267047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74076221 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 (74076227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245135 + ... + 245436.

It is an arithmetic number, because the mean of its divisors is an integer number (18641736).

Almost surely, 2^74076221 is an apocalyptic number.

It is an amenable number.

74076221 is a deficient number, since it is larger than the sum of its proper divisors (490723).

74076221 is a wasteful number, since it uses less digits than its factorization.

74076221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490722.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 74076221 is about 8606.7543824603. The cubic root of 74076221 is about 419.9777406948.

The spelling of 74076221 in words is "seventy-four million, seventy-six thousand, two hundred twenty-one".