74225587 has 8 divisors (see below), whose sum is σ = 81302400. Its totient is φ = 67449984.

The previous prime is 74225573. The next prime is 74225617. The reversal of 74225587 is 78552247.

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 74225587 - 2¹⁵ = 74192819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74225507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74787 + ... + 75772.

It is an arithmetic number, because the mean of its divisors is an integer number (10162800).

Almost surely, 2^74225587 is an apocalyptic number.

74225587 is a deficient number, since it is larger than the sum of its proper divisors (7076813).

74225587 is a wasteful number, since it uses less digits than its factorization.

74225587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150605.

The product of its digits is 156800, while the sum is 40.

The square root of 74225587 is about 8615.4272674082. The cubic root of 74225587 is about 420.2598297769.

The spelling of 74225587 in words is "seventy-four million, two hundred twenty-five thousand, five hundred eighty-seven".