74855743 has 4 divisors (see below), whose sum is σ = 79259040. Its totient is φ = 70452448.

The previous prime is 74855713. The next prime is 74855761. The reversal of 74855743 is 34755847.

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 74855743 - 2²⁵ = 41301311 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 74855743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74855713) 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, 2201623 + ... + 2201656.

It is an arithmetic number, because the mean of its divisors is an integer number (19814760).

Almost surely, 2^74855743 is an apocalyptic number.

74855743 is a deficient number, since it is larger than the sum of its proper divisors (4403297).

74855743 is a wasteful number, since it uses less digits than its factorization.

74855743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4403296.

The product of its digits is 470400, while the sum is 43.

The square root of 74855743 is about 8651.9213473078. The cubic root of 74855743 is about 421.4457789666.

The spelling of 74855743 in words is "seventy-four million, eight hundred fifty-five thousand, seven hundred forty-three".