284490086 has 4 divisors (see below), whose sum is σ = 426735132. Its totient is φ = 142245042.

The previous prime is 284490079. The next prime is 284490091. The reversal of 284490086 is 680094482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 680094482 = 2 ⋅340047241.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71122520 + ... + 71122523.

It is an arithmetic number, because the mean of its divisors is an integer number (106683783).

Almost surely, 2^284490086 is an apocalyptic number.

284490086 is a deficient number, since it is larger than the sum of its proper divisors (142245046).

284490086 is a wasteful number, since it uses less digits than its factorization.

284490086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142245045.

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 284490086 is about 16866.8339056267. The cubic root of 284490086 is about 657.6917268221.

The spelling of 284490086 in words is "two hundred eighty-four million, four hundred ninety thousand, eighty-six".