84882209 has 2 divisors, whose sum is σ = 84882210. Its totient is φ = 84882208.

The previous prime is 84882169. The next prime is 84882223. The reversal of 84882209 is 90228848.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50013184 + 34869025 = 7072^2 + 5905^2 .

It is a cyclic number.

It is not a de Polignac number, because 84882209 - 2¹² = 84878113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84882229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42441104 + 42441105.

It is an arithmetic number, because the mean of its divisors is an integer number (42441105).

Almost surely, 2^84882209 is an apocalyptic number.

It is an amenable number.

84882209 is a deficient number, since it is larger than the sum of its proper divisors (1).

84882209 is an equidigital number, since it uses as much as digits as its factorization.

84882209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 84882209 is about 9213.1541287444. The cubic root of 84882209 is about 439.4797725559.

The spelling of 84882209 in words is "eighty-four million, eight hundred eighty-two thousand, two hundred nine".