84889271 has 2 divisors, whose sum is σ = 84889272. Its totient is φ = 84889270.

The previous prime is 84889249. The next prime is 84889307. The reversal of 84889271 is 17298848.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84889271 - 2²² = 80694967 is a prime.

It is a super-2 number, since 2×84889271² = 14412376661822882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84889241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42444635 + 42444636.

It is an arithmetic number, because the mean of its divisors is an integer number (42444636).

Almost surely, 2^84889271 is an apocalyptic number.

84889271 is a deficient number, since it is larger than the sum of its proper divisors (1).

84889271 is an equidigital number, since it uses as much as digits as its factorization.

84889271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 47.

The square root of 84889271 is about 9213.5373771424. The cubic root of 84889271 is about 439.4919601122.

The spelling of 84889271 in words is "eighty-four million, eight hundred eighty-nine thousand, two hundred seventy-one".