74084569 has 4 divisors (see below), whose sum is σ = 79783396. Its totient is φ = 68385744.

The previous prime is 74084557. The next prime is 74084597. The reversal of 74084569 is 96548047.

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 27667600 + 46416969 = 5260^2 + 6813^2 .

It is a cyclic number.

It is not a de Polignac number, because 74084569 - 2¹¹ = 74082521 is a prime.

It is a super-2 number, since 2×74084569² = 10977046727831522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74084509) 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, 2849394 + ... + 2849419.

It is an arithmetic number, because the mean of its divisors is an integer number (19945849).

Almost surely, 2^74084569 is an apocalyptic number.

It is an amenable number.

74084569 is a deficient number, since it is larger than the sum of its proper divisors (5698827).

74084569 is a wasteful number, since it uses less digits than its factorization.

74084569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5698826.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 74084569 is about 8607.2393367444. The cubic root of 74084569 is about 419.9935165288.

The spelling of 74084569 in words is "seventy-four million, eighty-four thousand, five hundred sixty-nine".