84056861 has 8 divisors (see below), whose sum is σ = 96137280. Its totient is φ = 71994528.

The previous prime is 84056837. The next prime is 84056867. The reversal of 84056861 is 16865048.

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

It is a cyclic number.

It is not a de Polignac number, because 84056861 - 2²² = 79862557 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 (84056867) 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, 7625 + ... + 15041.

It is an arithmetic number, because the mean of its divisors is an integer number (12017160).

Almost surely, 2^84056861 is an apocalyptic number.

It is an amenable number.

84056861 is a deficient number, since it is larger than the sum of its proper divisors (12080419).

84056861 is a wasteful number, since it uses less digits than its factorization.

84056861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9043.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 84056861 is about 9168.2528870009. The cubic root of 84056861 is about 438.0507106830.

The spelling of 84056861 in words is "eighty-four million, fifty-six thousand, eight hundred sixty-one".