84746309 has 8 divisors (see below), whose sum is σ = 89861400. Its totient is φ = 79645696.

The previous prime is 84746273. The next prime is 84746341. The reversal of 84746309 is 90364748.

It can be written as a sum of positive squares in 4 ways, for example, as 25502500 + 59243809 = 5050^2 + 7697^2 .

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 84746309 - 2¹⁶ = 84680773 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 (84746359) 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, 9917 + ... + 16365.

It is an arithmetic number, because the mean of its divisors is an integer number (11232675).

Almost surely, 2^84746309 is an apocalyptic number.

It is an amenable number.

84746309 is a deficient number, since it is larger than the sum of its proper divisors (5115091).

84746309 is a wasteful number, since it uses less digits than its factorization.

84746309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7239.

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

The square root of 84746309 is about 9205.7758499759. The cubic root of 84746309 is about 439.2451053843.

The spelling of 84746309 in words is "eighty-four million, seven hundred forty-six thousand, three hundred nine".