427323187 has 8 divisors (see below), whose sum is σ = 447872256. Its totient is φ = 406938312.

The previous prime is 427323161. The next prime is 427323217. The reversal of 427323187 is 781323724.

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 427323187 - 2⁷ = 427323059 is a prime.

It is a super-2 number, since 2×427323187² = 365210212295673938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427323137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35703 + ... + 46144.

It is an arithmetic number, because the mean of its divisors is an integer number (55984032).

Almost surely, 2^427323187 is an apocalyptic number.

427323187 is a deficient number, since it is larger than the sum of its proper divisors (20549069).

427323187 is a wasteful number, since it uses less digits than its factorization.

427323187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82097.

The product of its digits is 56448, while the sum is 37.

The square root of 427323187 is about 20671.7968981896. The cubic root of 427323187 is about 753.2147560295.

The spelling of 427323187 in words is "four hundred twenty-seven million, three hundred twenty-three thousand, one hundred eighty-seven".