74045089 has 4 divisors (see below), whose sum is σ = 74368660. Its totient is φ = 73721520.

The previous prime is 74045087. The next prime is 74045093. The reversal of 74045089 is 98054047.

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

It can be written as a sum of positive squares in 2 ways, for example, as 35605089 + 38440000 = 5967^2 + 6200^2 .

It is a cyclic number.

It is not a de Polignac number, because 74045089 - 2¹ = 74045087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74045087) 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, 161442 + ... + 161899.

It is an arithmetic number, because the mean of its divisors is an integer number (18592165).

Almost surely, 2^74045089 is an apocalyptic number.

It is an amenable number.

74045089 is a deficient number, since it is larger than the sum of its proper divisors (323571).

74045089 is a wasteful number, since it uses less digits than its factorization.

74045089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323570.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 74045089 is about 8604.9456128438. The cubic root of 74045089 is about 419.9188977944.

The spelling of 74045089 in words is "seventy-four million, forty-five thousand, eighty-nine".