84622459 has 4 divisors (see below), whose sum is σ = 84648304. Its totient is φ = 84596616.

The previous prime is 84622457. The next prime is 84622469. The reversal of 84622459 is 95422648.

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 84622459 - 2¹ = 84622457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84622453) 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, 7152 + ... + 14845.

It is an arithmetic number, because the mean of its divisors is an integer number (21162076).

Almost surely, 2^84622459 is an apocalyptic number.

84622459 is a deficient number, since it is larger than the sum of its proper divisors (25845).

84622459 is a wasteful number, since it uses less digits than its factorization.

84622459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25844.

The product of its digits is 138240, while the sum is 40.

The square root of 84622459 is about 9199.0466353856. The cubic root of 84622459 is about 439.0310271189.

The spelling of 84622459 in words is "eighty-four million, six hundred twenty-two thousand, four hundred fifty-nine".