84861022 has 4 divisors (see below), whose sum is σ = 127291536. Its totient is φ = 42430510.

The previous prime is 84860959. The next prime is 84861031. The reversal of 84861022 is 22016848.

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

It is a super-3 number, since 3×84861022³ (a number of 25 digits) contains 333 as substring.

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 as a sum of consecutive naturals, namely, 21215254 + ... + 21215257.

It is an arithmetic number, because the mean of its divisors is an integer number (31822884).

Almost surely, 2^84861022 is an apocalyptic number.

84861022 is a deficient number, since it is larger than the sum of its proper divisors (42430514).

84861022 is a wasteful number, since it uses less digits than its factorization.

84861022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42430513.

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

The square root of 84861022 is about 9212.0042336074. The cubic root of 84861022 is about 439.4432041047.

The spelling of 84861022 in words is "eighty-four million, eight hundred sixty-one thousand, twenty-two".