74252387 has 4 divisors (see below), whose sum is σ = 81002616. Its totient is φ = 67502160.

The previous prime is 74252371. The next prime is 74252393. The reversal of 74252387 is 78325247.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 74252387 - 2⁴ = 74252371 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 74252387.

It is not an unprimeable number, because it can be changed into a prime (74252317) 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, 3375098 + ... + 3375119.

It is an arithmetic number, because the mean of its divisors is an integer number (20250654).

Almost surely, 2^74252387 is an apocalyptic number.

74252387 is a deficient number, since it is larger than the sum of its proper divisors (6750229).

74252387 is a wasteful number, since it uses less digits than its factorization.

74252387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6750228.

The product of its digits is 94080, while the sum is 38.

The square root of 74252387 is about 8616.9824764821. The cubic root of 74252387 is about 420.3104035688.

The spelling of 74252387 in words is "seventy-four million, two hundred fifty-two thousand, three hundred eighty-seven".