84851047 has 2 divisors, whose sum is σ = 84851048. Its totient is φ = 84851046.

The previous prime is 84851033. The next prime is 84851059. The reversal of 84851047 is 74015848.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84851047 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 84850997 and 84851015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84851077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42425523 + 42425524.

It is an arithmetic number, because the mean of its divisors is an integer number (42425524).

Almost surely, 2^84851047 is an apocalyptic number.

84851047 is a deficient number, since it is larger than the sum of its proper divisors (1).

84851047 is an equidigital number, since it uses as much as digits as its factorization.

84851047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 84851047 is about 9211.4628045713. The cubic root of 84851047 is about 439.4259852936.

The spelling of 84851047 in words is "eighty-four million, eight hundred fifty-one thousand, forty-seven".