285887073 has 4 divisors (see below), whose sum is σ = 381182768. Its totient is φ = 190591380.

The previous prime is 285887071. The next prime is 285887083. The reversal of 285887073 is 370788582.

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 not a de Polignac number, because 285887073 - 2¹ = 285887071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285887071) 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, 47647843 + ... + 47647848.

It is an arithmetic number, because the mean of its divisors is an integer number (95295692).

Almost surely, 2^285887073 is an apocalyptic number.

It is an amenable number.

285887073 is a deficient number, since it is larger than the sum of its proper divisors (95295695).

285887073 is an equidigital number, since it uses as much as digits as its factorization.

285887073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95295694.

The product of its (nonzero) digits is 752640, while the sum is 48.

The square root of 285887073 is about 16908.1954388989. The cubic root of 285887073 is about 658.7665000482.

It can be divided in two parts, 28588707 and 3, that multiplied together give a 6-th power (85766121 = 21⁶).

The spelling of 285887073 in words is "two hundred eighty-five million, eight hundred eighty-seven thousand, seventy-three".