84476309 has 8 divisors (see below), whose sum is σ = 88506432. Its totient is φ = 80476000.

The previous prime is 84476303. The next prime is 84476311. The reversal of 84476309 is 90367448.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84476309 - 2¹⁶ = 84410773 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 (84476303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1544 + ... + 13089.

It is an arithmetic number, because the mean of its divisors is an integer number (11063304).

Almost surely, 2^84476309 is an apocalyptic number.

It is an amenable number.

84476309 is a deficient number, since it is larger than the sum of its proper divisors (4030123).

84476309 is a wasteful number, since it uses less digits than its factorization.

84476309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14907.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 84476309 is about 9191.0994445714. The cubic root of 84476309 is about 438.7781338171.

The spelling of 84476309 in words is "eighty-four million, four hundred seventy-six thousand, three hundred nine".