84225859 has 4 divisors (see below), whose sum is σ = 84244680. Its totient is φ = 84207040.

The previous prime is 84225857. The next prime is 84225877. The reversal of 84225859 is 95852248.

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

It is a cyclic number.

It is not a de Polignac number, because 84225859 - 2¹ = 84225857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84225857) 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, 1587 + ... + 13075.

It is an arithmetic number, because the mean of its divisors is an integer number (21061170).

Almost surely, 2^84225859 is an apocalyptic number.

84225859 is a deficient number, since it is larger than the sum of its proper divisors (18821).

84225859 is a wasteful number, since it uses less digits than its factorization.

84225859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18820.

The product of its digits is 230400, while the sum is 43.

The square root of 84225859 is about 9177.4647370611. The cubic root of 84225859 is about 438.3440840644.

The spelling of 84225859 in words is "eighty-four million, two hundred twenty-five thousand, eight hundred fifty-nine".