81846022 has 8 divisors (see below), whose sum is σ = 123047496. Its totient is φ = 40830192.

The previous prime is 81845999. The next prime is 81846043. The reversal of 81846022 is 22064818.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 45303 + ... + 47074.

It is an arithmetic number, because the mean of its divisors is an integer number (15380937).

Almost surely, 2^81846022 is an apocalyptic number.

81846022 is a deficient number, since it is larger than the sum of its proper divisors (41201474).

81846022 is a wasteful number, since it uses less digits than its factorization.

81846022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92822.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 81846022 is about 9046.8791303963. The cubic root of 81846022 is about 434.1760454369.

The spelling of 81846022 in words is "eighty-one million, eight hundred forty-six thousand, twenty-two".