84801271 has 2 divisors, whose sum is σ = 84801272. Its totient is φ = 84801270.

The previous prime is 84801251. The next prime is 84801281. The reversal of 84801271 is 17210848.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84801271 - 2²¹ = 82704119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84801221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42400635 + 42400636.

It is an arithmetic number, because the mean of its divisors is an integer number (42400636).

Almost surely, 2^84801271 is an apocalyptic number.

84801271 is a deficient number, since it is larger than the sum of its proper divisors (1).

84801271 is an equidigital number, since it uses as much as digits as its factorization.

84801271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 84801271 is about 9208.7605572086. The cubic root of 84801271 is about 439.3400419569.

The spelling of 84801271 in words is "eighty-four million, eight hundred one thousand, two hundred seventy-one".