74189085 has 8 divisors (see below), whose sum is σ = 118702560. Its totient is φ = 39567504.

The previous prime is 74189083. The next prime is 74189111. The reversal of 74189085 is 58098147.

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

It is not a de Polignac number, because 74189085 - 2¹ = 74189083 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74189083) 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, 2472955 + ... + 2472984.

It is an arithmetic number, because the mean of its divisors is an integer number (14837820).

Almost surely, 2^74189085 is an apocalyptic number.

It is an amenable number.

74189085 is a deficient number, since it is larger than the sum of its proper divisors (44513475).

74189085 is a wasteful number, since it uses less digits than its factorization.

74189085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4945947.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 74189085 is about 8613.3085977457. The cubic root of 74189085 is about 420.1909279321.

The spelling of 74189085 in words is "seventy-four million, one hundred eighty-nine thousand, eighty-five".