84406851 has 12 divisors (see below), whose sum is σ = 122040360. Its totient is φ = 56216160.

The previous prime is 84406841. The next prime is 84406897. The reversal of 84406851 is 15860448.

It is not a de Polignac number, because 84406851 - 2⁹ = 84406339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84406841) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 6535 + ... + 14543.

It is an arithmetic number, because the mean of its divisors is an integer number (10170030).

Almost surely, 2^84406851 is an apocalyptic number.

84406851 is a deficient number, since it is larger than the sum of its proper divisors (37633509).

84406851 is a wasteful number, since it uses less digits than its factorization.

84406851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9186 (or 9183 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 84406851 is about 9187.3201206881. The cubic root of 84406851 is about 438.6578436489.

The spelling of 84406851 in words is "eighty-four million, four hundred six thousand, eight hundred fifty-one".