74899393 has 4 divisors (see below), whose sum is σ = 75489280. Its totient is φ = 74309508.

The previous prime is 74899369. The next prime is 74899403. The reversal of 74899393 is 39399847.

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.

It is a cyclic number.

It is not a de Polignac number, because 74899393 - 2⁵ = 74899361 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 74899393.

It is not an unprimeable number, because it can be changed into a prime (74899343) 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, 294753 + ... + 295006.

It is an arithmetic number, because the mean of its divisors is an integer number (18872320).

Almost surely, 2^74899393 is an apocalyptic number.

It is an amenable number.

74899393 is a deficient number, since it is larger than the sum of its proper divisors (589887).

74899393 is a wasteful number, since it uses less digits than its factorization.

74899393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589886.

The product of its digits is 1469664, while the sum is 52.

The square root of 74899393 is about 8654.4435407483. The cubic root of 74899393 is about 421.5276810935.

The spelling of 74899393 in words is "seventy-four million, eight hundred ninety-nine thousand, three hundred ninety-three".