84894289 has 4 divisors (see below), whose sum is σ = 84915124. Its totient is φ = 84873456.

The previous prime is 84894263. The next prime is 84894347. The reversal of 84894289 is 98249848.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44355600 + 40538689 = 6660^2 + 6367^2 .

It is a cyclic number.

It is not a de Polignac number, because 84894289 - 2¹³ = 84886097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84894989) 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, 2082 + ... + 13195.

It is an arithmetic number, because the mean of its divisors is an integer number (21228781).

Almost surely, 2^84894289 is an apocalyptic number.

It is an amenable number.

84894289 is a deficient number, since it is larger than the sum of its proper divisors (20835).

84894289 is a wasteful number, since it uses less digits than its factorization.

84894289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20834.

The product of its digits is 1327104, while the sum is 52.

The square root of 84894289 is about 9213.8096898080. The cubic root of 84894289 is about 439.5006197350.

The spelling of 84894289 in words is "eighty-four million, eight hundred ninety-four thousand, two hundred eighty-nine".