74315397 has 16 divisors (see below), whose sum is σ = 108521280. Its totient is φ = 44956032.

The previous prime is 74315359. The next prime is 74315399. The reversal of 74315397 is 79351347.

It is a happy number.

It is not a de Polignac number, because 74315397 - 2⁶ = 74315333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74315399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13848 + ... + 18449.

It is an arithmetic number, because the mean of its divisors is an integer number (6782580).

Almost surely, 2^74315397 is an apocalyptic number.

It is an amenable number.

74315397 is a deficient number, since it is larger than the sum of its proper divisors (34205883).

74315397 is a wasteful number, since it uses less digits than its factorization.

74315397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32372.

The product of its digits is 79380, while the sum is 39.

The square root of 74315397 is about 8620.6378534306. The cubic root of 74315397 is about 420.4292606715.

The spelling of 74315397 in words is "seventy-four million, three hundred fifteen thousand, three hundred ninety-seven".