285934423 has 4 divisors (see below), whose sum is σ = 286281000. Its totient is φ = 285587848.

The previous prime is 285934387. The next prime is 285934433. The reversal of 285934423 is 324439582.

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 285934423 - 2¹⁷ = 285803351 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 (285934433) 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, 172048 + ... + 173701.

It is an arithmetic number, because the mean of its divisors is an integer number (71570250).

Almost surely, 2^285934423 is an apocalyptic number.

285934423 is a deficient number, since it is larger than the sum of its proper divisors (346577).

285934423 is an equidigital number, since it uses as much as digits as its factorization.

285934423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346576.

The product of its digits is 207360, while the sum is 40.

The square root of 285934423 is about 16909.5955894871. The cubic root of 285934423 is about 658.8028674053.

The spelling of 285934423 in words is "two hundred eighty-five million, nine hundred thirty-four thousand, four hundred twenty-three".