427895983 has 4 divisors (see below), whose sum is σ = 428248800. Its totient is φ = 427543168.

The previous prime is 427895971. The next prime is 427896011. The reversal of 427895983 is 389598724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 427895983 - 2²⁵ = 394341551 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 (427895953) 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, 174583 + ... + 177016.

It is an arithmetic number, because the mean of its divisors is an integer number (107062200).

Almost surely, 2^427895983 is an apocalyptic number.

427895983 is a deficient number, since it is larger than the sum of its proper divisors (352817).

427895983 is a wasteful number, since it uses less digits than its factorization.

427895983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352816.

The product of its digits is 4354560, while the sum is 55.

The square root of 427895983 is about 20685.6467870840. The cubic root of 427895983 is about 753.5511491743.

The spelling of 427895983 in words is "four hundred twenty-seven million, eight hundred ninety-five thousand, nine hundred eighty-three".