853682709 has 12 divisors (see below), whose sum is σ = 1251127808. Its totient is φ = 517383240.

The previous prime is 853682663. The next prime is 853682723. The reversal of 853682709 is 907286358.

It is not a de Polignac number, because 853682709 - 2¹³ = 853674517 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 (853602709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1175509 + ... + 1176234.

Almost surely, 2^853682709 is an apocalyptic number.

It is an amenable number.

853682709 is a deficient number, since it is larger than the sum of its proper divisors (397445099).

853682709 is a wasteful number, since it uses less digits than its factorization.

853682709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351768 (or 2351757 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 853682709 is about 29217.8491508188. The cubic root of 853682709 is about 948.6343106153.

The spelling of 853682709 in words is "eight hundred fifty-three million, six hundred eighty-two thousand, seven hundred nine".