74433091 has 4 divisors (see below), whose sum is σ = 74742184. Its totient is φ = 74124000.

The previous prime is 74433031. The next prime is 74433097. The reversal of 74433091 is 19033447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19033447 = 1777 ⋅10711.

It is a cyclic number.

It is not a de Polignac number, because 74433091 - 2¹¹ = 74431043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74433097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154185 + ... + 154666.

It is an arithmetic number, because the mean of its divisors is an integer number (18685546).

Almost surely, 2^74433091 is an apocalyptic number.

74433091 is a deficient number, since it is larger than the sum of its proper divisors (309093).

74433091 is a wasteful number, since it uses less digits than its factorization.

74433091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309092.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 74433091 is about 8627.4614458715. The cubic root of 74433091 is about 420.6510895461.

The spelling of 74433091 in words is "seventy-four million, four hundred thirty-three thousand, ninety-one".