853646741 has 4 divisors (see below), whose sum is σ = 853713900. Its totient is φ = 853579584.

The previous prime is 853646723. The next prime is 853646791. The reversal of 853646741 is 147646358.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 147646358 = 2 ⋅73823179.

It can be written as a sum of positive squares in 2 ways, for example, as 768453841 + 85192900 = 27721^2 + 9230^2 .

It is a cyclic number.

It is not a de Polignac number, because 853646741 - 2¹⁴ = 853630357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 853646692 and 853646701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853646701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8036 + ... + 42093.

It is an arithmetic number, because the mean of its divisors is an integer number (213428475).

Almost surely, 2^853646741 is an apocalyptic number.

It is an amenable number.

853646741 is a deficient number, since it is larger than the sum of its proper divisors (67159).

853646741 is a wasteful number, since it uses less digits than its factorization.

853646741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67158.

The product of its digits is 483840, while the sum is 44.

The square root of 853646741 is about 29217.2336301711. The cubic root of 853646741 is about 948.6209875708.

The spelling of 853646741 in words is "eight hundred fifty-three million, six hundred forty-six thousand, seven hundred forty-one".