74089549 has 4 divisors (see below), whose sum is σ = 74147040. Its totient is φ = 74032060.

The previous prime is 74089541. The next prime is 74089567. The reversal of 74089549 is 94598047.

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: 94598047 = 17 ⋅5564591.

It is a cyclic number.

It is not a de Polignac number, because 74089549 - 2³ = 74089541 is a prime.

It is a super-2 number, since 2×74089549² = 10978522542046802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74089499 and 74089508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74089541) 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 3 ways as a sum of consecutive naturals, for example, 26767 + ... + 29404.

It is an arithmetic number, because the mean of its divisors is an integer number (18536760).

Almost surely, 2^74089549 is an apocalyptic number.

It is an amenable number.

74089549 is a deficient number, since it is larger than the sum of its proper divisors (57491).

74089549 is a wasteful number, since it uses less digits than its factorization.

74089549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57490.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 74089549 is about 8607.5286232460. The cubic root of 74089549 is about 420.0029270393.

The spelling of 74089549 in words is "seventy-four million, eighty-nine thousand, five hundred forty-nine".