74891383 has 8 divisors (see below), whose sum is σ = 85652352. Its totient is φ = 64145976.

The previous prime is 74891363. The next prime is 74891413. The reversal of 74891383 is 38319847.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74891383 - 2¹⁷ = 74760311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74891353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9516 + ... + 15502.

It is an arithmetic number, because the mean of its divisors is an integer number (10706544).

Almost surely, 2^74891383 is an apocalyptic number.

74891383 is a deficient number, since it is larger than the sum of its proper divisors (10760969).

74891383 is a wasteful number, since it uses less digits than its factorization.

74891383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7781.

The product of its digits is 145152, while the sum is 43.

The square root of 74891383 is about 8653.9807603207. The cubic root of 74891383 is about 421.5126540154.

The spelling of 74891383 in words is "seventy-four million, eight hundred ninety-one thousand, three hundred eighty-three".