74271189 has 8 divisors (see below), whose sum is σ = 99100800. Its totient is φ = 49477856.

The previous prime is 74271187. The next prime is 74271193. The reversal of 74271189 is 98117247.

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 74271189 - 2¹ = 74271187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74271187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3864 + ... + 12785.

It is an arithmetic number, because the mean of its divisors is an integer number (12387600).

Almost surely, 2^74271189 is an apocalyptic number.

It is an amenable number.

74271189 is a deficient number, since it is larger than the sum of its proper divisors (24829611).

74271189 is a wasteful number, since it uses less digits than its factorization.

74271189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18139.

The product of its digits is 28224, while the sum is 39.

The square root of 74271189 is about 8618.0733925861. The cubic root of 74271189 is about 420.3458772175.

The spelling of 74271189 in words is "seventy-four million, two hundred seventy-one thousand, one hundred eighty-nine".