84122345 has 4 divisors (see below), whose sum is σ = 100946820. Its totient is φ = 67297872.

The previous prime is 84122333. The next prime is 84122347. The reversal of 84122345 is 54322148.

It is a happy number.

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 43507216 + 40615129 = 6596^2 + 6373^2 .

It is a cyclic number.

It is not a de Polignac number, because 84122345 - 2⁸ = 84122089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84122347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8412230 + ... + 8412239.

It is an arithmetic number, because the mean of its divisors is an integer number (25236705).

Almost surely, 2^84122345 is an apocalyptic number.

It is an amenable number.

84122345 is a deficient number, since it is larger than the sum of its proper divisors (16824475).

84122345 is a wasteful number, since it uses less digits than its factorization.

84122345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16824474.

The product of its digits is 7680, while the sum is 29.

The square root of 84122345 is about 9171.8234283048. The cubic root of 84122345 is about 438.1644347605.

The spelling of 84122345 in words is "eighty-four million, one hundred twenty-two thousand, three hundred forty-five".