74299679 has 4 divisors (see below), whose sum is σ = 74391000. Its totient is φ = 74208360.

The previous prime is 74299661. The next prime is 74299681. The reversal of 74299679 is 97699247.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97699247 = 61 ⋅1601627.

It is a cyclic number.

It is not a de Polignac number, because 74299679 - 2¹² = 74295583 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 74299679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74299649) 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, 44429 + ... + 46070.

It is an arithmetic number, because the mean of its divisors is an integer number (18597750).

Almost surely, 2^74299679 is an apocalyptic number.

74299679 is a deficient number, since it is larger than the sum of its proper divisors (91321).

74299679 is an equidigital number, since it uses as much as digits as its factorization.

74299679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91320.

The product of its digits is 1714608, while the sum is 53.

The square root of 74299679 is about 8619.7261557430. The cubic root of 74299679 is about 420.3996177651.

The spelling of 74299679 in words is "seventy-four million, two hundred ninety-nine thousand, six hundred seventy-nine".