74885579 has 4 divisors (see below), whose sum is σ = 75727080. Its totient is φ = 74044080.

The previous prime is 74885549. The next prime is 74885597. The reversal of 74885579 is 97558847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97558847 = 23 ⋅4241689.

It is a cyclic number.

It is not a de Polignac number, because 74885579 - 2¹² = 74881483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74885579.

It is not an unprimeable number, because it can be changed into a prime (74885549) 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, 420617 + ... + 420794.

It is an arithmetic number, because the mean of its divisors is an integer number (18931770).

Almost surely, 2^74885579 is an apocalyptic number.

74885579 is a deficient number, since it is larger than the sum of its proper divisors (841501).

74885579 is an equidigital number, since it uses as much as digits as its factorization.

74885579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841500.

The product of its digits is 2822400, while the sum is 53.

The square root of 74885579 is about 8653.6454168171. The cubic root of 74885579 is about 421.5017648113.

The spelling of 74885579 in words is "seventy-four million, eight hundred eighty-five thousand, five hundred seventy-nine".