74253393 has 12 divisors (see below), whose sum is σ = 107331588. Its totient is φ = 49466880.

The previous prime is 74253391. The next prime is 74253397. The reversal of 74253393 is 39335247.

It can be written as a sum of positive squares in 2 ways, for example, as 15776784 + 58476609 = 3972^2 + 7647^2 .

It is not a de Polignac number, because 74253393 - 2¹ = 74253391 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74253391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18721 + ... + 22337.

It is an arithmetic number, because the mean of its divisors is an integer number (8944299).

Almost surely, 2^74253393 is an apocalyptic number.

It is an amenable number.

74253393 is a deficient number, since it is larger than the sum of its proper divisors (33078195).

74253393 is a wasteful number, since it uses less digits than its factorization.

74253393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5904 (or 5901 counting only the distinct ones).

The product of its digits is 68040, while the sum is 36.

The square root of 74253393 is about 8617.0408493868. The cubic root of 74253393 is about 420.3123017361.

The spelling of 74253393 in words is "seventy-four million, two hundred fifty-three thousand, three hundred ninety-three".