74358943 has 4 divisors (see below), whose sum is σ = 74493000. Its totient is φ = 74224888.

The previous prime is 74358899. The next prime is 74358961. The reversal of 74358943 is 34985347.

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

It is a cyclic number.

It is not a de Polignac number, because 74358943 - 2¹⁷ = 74227871 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 74358943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74358983) 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, 66193 + ... + 67306.

It is an arithmetic number, because the mean of its divisors is an integer number (18623250).

Almost surely, 2^74358943 is an apocalyptic number.

74358943 is a deficient number, since it is larger than the sum of its proper divisors (134057).

74358943 is a wasteful number, since it uses less digits than its factorization.

74358943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134056.

The product of its digits is 362880, while the sum is 43.

The square root of 74358943 is about 8623.1631667272. The cubic root of 74358943 is about 420.5113631633.

The spelling of 74358943 in words is "seventy-four million, three hundred fifty-eight thousand, nine hundred forty-three".