427334857 has 4 divisors (see below), whose sum is σ = 436427136. Its totient is φ = 418242580.

The previous prime is 427334851. The next prime is 427334891. The reversal of 427334857 is 758433724.

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.

It is a cyclic number.

It is not a de Polignac number, because 427334857 - 2¹¹ = 427332809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427334851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4546069 + ... + 4546162.

It is an arithmetic number, because the mean of its divisors is an integer number (109106784).

Almost surely, 2^427334857 is an apocalyptic number.

427334857 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

427334857 is a deficient number, since it is larger than the sum of its proper divisors (9092279).

427334857 is an equidigital number, since it uses as much as digits as its factorization.

427334857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9092278.

The product of its digits is 564480, while the sum is 43.

The square root of 427334857 is about 20672.0791649026. The cubic root of 427334857 is about 753.2216126168.

The spelling of 427334857 in words is "four hundred twenty-seven million, three hundred thirty-four thousand, eight hundred fifty-seven".