284195089 has 4 divisors (see below), whose sum is σ = 285897024. Its totient is φ = 282493156.

The previous prime is 284195077. The next prime is 284195117. The reversal of 284195089 is 980591482.

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 284195089 - 2⁷ = 284194961 is a prime.

It is a super-2 number, since 2×284195089² = 161533697223435842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284195029) 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, 850717 + ... + 851050.

It is an arithmetic number, because the mean of its divisors is an integer number (71474256).

Almost surely, 2^284195089 is an apocalyptic number.

It is an amenable number.

284195089 is a deficient number, since it is larger than the sum of its proper divisors (1701935).

284195089 is a wasteful number, since it uses less digits than its factorization.

284195089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701934.

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 284195089 is about 16858.0867538401. The cubic root of 284195089 is about 657.4643209060.

The spelling of 284195089 in words is "two hundred eighty-four million, one hundred ninety-five thousand, eighty-nine".