84022861 has 8 divisors (see below), whose sum is σ = 92194200. Its totient is φ = 76095552.

The previous prime is 84022847. The next prime is 84022871. The reversal of 84022861 is 16822048.

It can be written as a sum of positive squares in 4 ways, for example, as 1394761 + 82628100 = 1181^2 + 9090^2 .

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

It is not a de Polignac number, because 84022861 - 2⁹ = 84022349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84022801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60286 + ... + 61663.

It is an arithmetic number, because the mean of its divisors is an integer number (11524275).

Almost surely, 2^84022861 is an apocalyptic number.

It is an amenable number.

84022861 is a deficient number, since it is larger than the sum of its proper divisors (8171339).

84022861 is a wasteful number, since it uses less digits than its factorization.

84022861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122015.

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

The square root of 84022861 is about 9166.3984748646. The cubic root of 84022861 is about 437.9916406180.

The spelling of 84022861 in words is "eighty-four million, twenty-two thousand, eight hundred sixty-one".