84391426 has 48 divisors (see below), whose sum is σ = 157757760. Its totient is φ = 33657120.

The previous prime is 84391403. The next prime is 84391453. The reversal of 84391426 is 62419348.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113211 + ... + 113953.

It is an arithmetic number, because the mean of its divisors is an integer number (3286620).

Almost surely, 2^84391426 is an apocalyptic number.

84391426 is a deficient number, since it is larger than the sum of its proper divisors (73366334).

84391426 is a wasteful number, since it uses less digits than its factorization.

84391426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839 (or 832 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 84391426 is about 9186.4806101140. The cubic root of 84391426 is about 438.6311210572.

The spelling of 84391426 in words is "eighty-four million, three hundred ninety-one thousand, four hundred twenty-six".