84971207 has 2 divisors, whose sum is σ = 84971208. Its totient is φ = 84971206.

The previous prime is 84971179. The next prime is 84971213. The reversal of 84971207 is 70217948.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84971207 - 2¹² = 84967111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84971267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42485603 + 42485604.

It is an arithmetic number, because the mean of its divisors is an integer number (42485604).

Almost surely, 2^84971207 is an apocalyptic number.

84971207 is a deficient number, since it is larger than the sum of its proper divisors (1).

84971207 is an equidigital number, since it uses as much as digits as its factorization.

84971207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 84971207 is about 9217.9828053647. The cubic root of 84971207 is about 439.6333153672.

The spelling of 84971207 in words is "eighty-four million, nine hundred seventy-one thousand, two hundred seven".