74065669 has 8 divisors (see below), whose sum is σ = 74733120. Its totient is φ = 73401216.

The previous prime is 74065661. The next prime is 74065679. The reversal of 74065669 is 96656047.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74065669 - 2³ = 74065661 is a prime.

It is a super-2 number, since 2×74065669² = 10971446648835122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74065661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109717 + ... + 110389.

It is an arithmetic number, because the mean of its divisors is an integer number (9341640).

Almost surely, 2^74065669 is an apocalyptic number.

It is an amenable number.

74065669 is a deficient number, since it is larger than the sum of its proper divisors (667451).

74065669 is a wasteful number, since it uses less digits than its factorization.

74065669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 74065669 is about 8606.1413537078. The cubic root of 74065669 is about 419.9577981028.

The spelling of 74065669 in words is "seventy-four million, sixty-five thousand, six hundred sixty-nine".