285683893 has 4 divisors (see below), whose sum is σ = 311655168. Its totient is φ = 259712620.

The previous prime is 285683831. The next prime is 285683899. The reversal of 285683893 is 398386582.

It is a happy number.

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 285683893 - 2²⁵ = 252129461 is a prime.

It is a super-3 number, since 3×285683893³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 285683893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285683899) 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, 12985621 + ... + 12985642.

It is an arithmetic number, because the mean of its divisors is an integer number (77913792).

Almost surely, 2^285683893 is an apocalyptic number.

It is an amenable number.

285683893 is a deficient number, since it is larger than the sum of its proper divisors (25971275).

285683893 is a wasteful number, since it uses less digits than its factorization.

285683893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25971274.

The product of its digits is 2488320, while the sum is 52.

The square root of 285683893 is about 16902.1860420479. The cubic root of 285683893 is about 658.6104012347.

The spelling of 285683893 in words is "two hundred eighty-five million, six hundred eighty-three thousand, eight hundred ninety-three".