74548669 has 4 divisors (see below), whose sum is σ = 80283196. Its totient is φ = 68814144.

The previous prime is 74548631. The next prime is 74548679. The reversal of 74548669 is 96684547.

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 19980900 + 54567769 = 4470^2 + 7387^2 .

It is a cyclic number.

It is not a de Polignac number, because 74548669 - 2¹⁷ = 74417597 is a prime.

It is a super-2 number, since 2×74548669² = 11115008099343122, 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 (74548679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2867244 + ... + 2867269.

It is an arithmetic number, because the mean of its divisors is an integer number (20070799).

Almost surely, 2^74548669 is an apocalyptic number.

It is an amenable number.

74548669 is a deficient number, since it is larger than the sum of its proper divisors (5734527).

74548669 is a wasteful number, since it uses less digits than its factorization.

74548669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5734526.

The product of its digits is 1451520, while the sum is 49.

The square root of 74548669 is about 8634.1571099905. The cubic root of 74548669 is about 420.8687027446.

The spelling of 74548669 in words is "seventy-four million, five hundred forty-eight thousand, six hundred sixty-nine".