84606309 has 16 divisors (see below), whose sum is σ = 128731840. Its totient is φ = 54879120.

The previous prime is 84606307. The next prime is 84606323. The reversal of 84606309 is 90360648.

It is not a de Polignac number, because 84606309 - 2¹ = 84606307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84606307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41347 + ... + 43344.

It is an arithmetic number, because the mean of its divisors is an integer number (8045740).

Almost surely, 2^84606309 is an apocalyptic number.

It is an amenable number.

84606309 is a deficient number, since it is larger than the sum of its proper divisors (44125531).

84606309 is a wasteful number, since it uses less digits than its factorization.

84606309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84737 (or 84731 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 84606309 is about 9198.1687851441. The cubic root of 84606309 is about 439.0030959909.

The spelling of 84606309 in words is "eighty-four million, six hundred six thousand, three hundred nine".