74091843 has 12 divisors (see below), whose sum is σ = 122310448. Its totient is φ = 42338160.

The previous prime is 74091821. The next prime is 74091851. The reversal of 74091843 is 34819047.

It is a happy number.

It is not a de Polignac number, because 74091843 - 2⁹ = 74091331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74091798 and 74091807.

It is not an unprimeable number, because it can be changed into a prime (74091803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 587968 + ... + 588093.

Almost surely, 2^74091843 is an apocalyptic number.

74091843 is a deficient number, since it is larger than the sum of its proper divisors (48218605).

74091843 is a wasteful number, since it uses less digits than its factorization.

74091843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176074 (or 1176071 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 74091843 is about 8607.6618776530. The cubic root of 74091843 is about 420.0072617792.

The spelling of 74091843 in words is "seventy-four million, ninety-one thousand, eight hundred forty-three".