427995839 has 2 divisors, whose sum is σ = 427995840. Its totient is φ = 427995838.

The previous prime is 427995823. The next prime is 427995857. The reversal of 427995839 is 938599724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427995839 - 2⁴ = 427995823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427995439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213997919 + 213997920.

It is an arithmetic number, because the mean of its divisors is an integer number (213997920).

Almost surely, 2^427995839 is an apocalyptic number.

427995839 is a deficient number, since it is larger than the sum of its proper divisors (1).

427995839 is an equidigital number, since it uses as much as digits as its factorization.

427995839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4898880, while the sum is 56.

The square root of 427995839 is about 20688.0603005695. The cubic root of 427995839 is about 753.6097621348.

The spelling of 427995839 in words is "four hundred twenty-seven million, nine hundred ninety-five thousand, eight hundred thirty-nine".