84427873 has 2 divisors, whose sum is σ = 84427874. Its totient is φ = 84427872.

The previous prime is 84427867. The next prime is 84427901. The reversal of 84427873 is 37872448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65173329 + 19254544 = 8073^2 + 4388^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84427873 is a prime.

It is not a weakly prime, because it can be changed into another prime (84427823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42213936 + 42213937.

It is an arithmetic number, because the mean of its divisors is an integer number (42213937).

Almost surely, 2^84427873 is an apocalyptic number.

It is an amenable number.

84427873 is a deficient number, since it is larger than the sum of its proper divisors (1).

84427873 is an equidigital number, since it uses as much as digits as its factorization.

84427873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 301056, while the sum is 43.

The square root of 84427873 is about 9188.4641262836. The cubic root of 84427873 is about 438.6942573588.

The spelling of 84427873 in words is "eighty-four million, four hundred twenty-seven thousand, eight hundred seventy-three".