427597189 has 8 divisors (see below), whose sum is σ = 431585280. Its totient is φ = 423619056.

The previous prime is 427597171. The next prime is 427597213. The reversal of 427597189 is 981795724.

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 427597189 - 2⁷ = 427597061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427597589) 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, 104547 + ... + 108559.

It is an arithmetic number, because the mean of its divisors is an integer number (53948160).

Almost surely, 2^427597189 is an apocalyptic number.

It is an amenable number.

427597189 is a deficient number, since it is larger than the sum of its proper divisors (3988091).

427597189 is a wasteful number, since it uses less digits than its factorization.

427597189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4979.

The product of its digits is 1270080, while the sum is 52.

The square root of 427597189 is about 20678.4232716133. The cubic root of 427597189 is about 753.3757101274.

The spelling of 427597189 in words is "four hundred twenty-seven million, five hundred ninety-seven thousand, one hundred eighty-nine".