84362309 has 2 divisors, whose sum is σ = 84362310. Its totient is φ = 84362308.

The previous prime is 84362303. The next prime is 84362323. The reversal of 84362309 is 90326348.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70930084 + 13432225 = 8422^2 + 3665^2 .

It is a cyclic number.

It is not a de Polignac number, because 84362309 - 2²⁰ = 83313733 is a prime.

It is a super-2 number, since 2×84362309² = 14233998359622962, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84362303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42181154 + 42181155.

It is an arithmetic number, because the mean of its divisors is an integer number (42181155).

Almost surely, 2^84362309 is an apocalyptic number.

It is an amenable number.

84362309 is a deficient number, since it is larger than the sum of its proper divisors (1).

84362309 is an equidigital number, since it uses as much as digits as its factorization.

84362309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 84362309 is about 9184.8956989179. The cubic root of 84362309 is about 438.5806692832.

The spelling of 84362309 in words is "eighty-four million, three hundred sixty-two thousand, three hundred nine".