74874979 has 16 divisors (see below), whose sum is σ = 78928416. Its totient is φ = 70963200.

The previous prime is 74874977. The next prime is 74874983. The reversal of 74874979 is 97947847.

It is a cyclic number.

It is not a de Polignac number, because 74874979 - 2¹ = 74874977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74874977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266319 + ... + 266599.

It is an arithmetic number, because the mean of its divisors is an integer number (4933026).

Almost surely, 2^74874979 is an apocalyptic number.

74874979 is a deficient number, since it is larger than the sum of its proper divisors (4053437).

74874979 is a wasteful number, since it uses less digits than its factorization.

74874979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486.

The product of its digits is 3556224, while the sum is 55.

The square root of 74874979 is about 8653.0329364911. The cubic root of 74874979 is about 421.4818761154.

The spelling of 74874979 in words is "seventy-four million, eight hundred seventy-four thousand, nine hundred seventy-nine".