74359221 has 4 divisors (see below), whose sum is σ = 99145632. Its totient is φ = 49572812.

The previous prime is 74359177. The next prime is 74359231. The reversal of 74359221 is 12295347.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12295347 = 3 ⋅4098449.

It is a cyclic number.

It is not a de Polignac number, because 74359221 - 2⁶ = 74359157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74359231) 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, 12393201 + ... + 12393206.

It is an arithmetic number, because the mean of its divisors is an integer number (24786408).

Almost surely, 2^74359221 is an apocalyptic number.

It is an amenable number.

74359221 is a deficient number, since it is larger than the sum of its proper divisors (24786411).

74359221 is a wasteful number, since it uses less digits than its factorization.

74359221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24786410.

The product of its digits is 15120, while the sum is 33.

The square root of 74359221 is about 8623.1792860870. The cubic root of 74359221 is about 420.5118872070.

The spelling of 74359221 in words is "seventy-four million, three hundred fifty-nine thousand, two hundred twenty-one".