84573871 has 2 divisors, whose sum is σ = 84573872. Its totient is φ = 84573870.

The previous prime is 84573847. The next prime is 84573887. The reversal of 84573871 is 17837548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84573871 - 2¹⁵ = 84541103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84571871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42286935 + 42286936.

It is an arithmetic number, because the mean of its divisors is an integer number (42286936).

Almost surely, 2^84573871 is an apocalyptic number.

84573871 is a deficient number, since it is larger than the sum of its proper divisors (1).

84573871 is an equidigital number, since it uses as much as digits as its factorization.

84573871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 43.

The square root of 84573871 is about 9196.4053303451. The cubic root of 84573871 is about 438.9469843254.

The spelling of 84573871 in words is "eighty-four million, five hundred seventy-three thousand, eight hundred seventy-one".