853305731 has 6 divisors (see below), whose sum is σ = 867996780. Its totient is φ = 838622348.

The previous prime is 853305707. The next prime is 853305743. The reversal of 853305731 is 137503358.

853305731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 853305731 - 2¹⁰ = 853304707 is a prime.

It is a super-2 number, since 2×853305731² = 1456261341114888722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 853305691 and 853305700.

It is not an unprimeable number, because it can be changed into a prime (853305331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 222476 + ... + 226278.

It is an arithmetic number, because the mean of its divisors is an integer number (144666130).

Almost surely, 2^853305731 is an apocalyptic number.

853305731 is a deficient number, since it is larger than the sum of its proper divisors (14691049).

853305731 is an frugal number, since it uses more digits than its factorization.

853305731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7665 (or 3862 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 853305731 is about 29211.3972791443. The cubic root of 853305731 is about 948.4946541543.

The spelling of 853305731 in words is "eight hundred fifty-three million, three hundred five thousand, seven hundred thirty-one".