853240743 has 8 divisors (see below), whose sum is σ = 1264060400. Its totient is φ = 568827144.

The previous prime is 853240723. The next prime is 853240753. The reversal of 853240743 is 347042358.

It is a happy number.

It is not a de Polignac number, because 853240743 - 2⁹ = 853240231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 853240698 and 853240707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853240723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15800728 + ... + 15800781.

It is an arithmetic number, because the mean of its divisors is an integer number (158007550).

Almost surely, 2^853240743 is an apocalyptic number.

853240743 is a deficient number, since it is larger than the sum of its proper divisors (410819657).

853240743 is a wasteful number, since it uses less digits than its factorization.

853240743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31601518 (or 31601512 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 853240743 is about 29210.2848839240. The cubic root of 853240743 is about 948.4705743381.

The spelling of 853240743 in words is "eight hundred fifty-three million, two hundred forty thousand, seven hundred forty-three".