74509369 has 4 divisors (see below), whose sum is σ = 81282960. Its totient is φ = 67735780.

The previous prime is 74509367. The next prime is 74509433. The reversal of 74509369 is 96390547.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96390547 = 11 ⋅8762777.

It is a cyclic number.

It is not a de Polignac number, because 74509369 - 2¹ = 74509367 is a prime.

It is a super-2 number, since 2×74509369² = 11103292137556322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74509363) 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, 3386779 + ... + 3386800.

It is an arithmetic number, because the mean of its divisors is an integer number (20320740).

Almost surely, 2^74509369 is an apocalyptic number.

It is an amenable number.

74509369 is a deficient number, since it is larger than the sum of its proper divisors (6773591).

74509369 is a wasteful number, since it uses less digits than its factorization.

74509369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6773590.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 74509369 is about 8631.8809653516. The cubic root of 74509369 is about 420.7947329581.

The spelling of 74509369 in words is "seventy-four million, five hundred nine thousand, three hundred sixty-nine".