74496389 has 16 divisors (see below), whose sum is σ = 84438720. Its totient is φ = 65103360.

The previous prime is 74496361. The next prime is 74496407. The reversal of 74496389 is 98369447.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74496389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74496319) 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, 110357 + ... + 111029.

It is an arithmetic number, because the mean of its divisors is an integer number (5277420).

Almost surely, 2^74496389 is an apocalyptic number.

It is an amenable number.

74496389 is a deficient number, since it is larger than the sum of its proper divisors (9942331).

74496389 is a wasteful number, since it uses less digits than its factorization.

74496389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060.

The product of its digits is 1306368, while the sum is 50.

The square root of 74496389 is about 8631.1290686677. The cubic root of 74496389 is about 420.7702965107.

The spelling of 74496389 in words is "seventy-four million, four hundred ninety-six thousand, three hundred eighty-nine".