782256853 has 16 divisors (see below), whose sum is σ = 948481920. Its totient is φ = 629807616.

The previous prime is 782256829. The next prime is 782256877. The reversal of 782256853 is 358652287.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (782256829) and next prime (782256877).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-782256853 is a prime.

It is a super-2 number, since 2×782256853² = 1223851568130927218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (782256053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55953 + ... + 68521.

It is an arithmetic number, because the mean of its divisors is an integer number (59280120).

Almost surely, 2^782256853 is an apocalyptic number.

It is an amenable number.

782256853 is a deficient number, since it is larger than the sum of its proper divisors (166225067).

782256853 is a wasteful number, since it uses less digits than its factorization.

782256853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13116.

The product of its digits is 806400, while the sum is 46.

The square root of 782256853 is about 27968.8550534340. The cubic root of 782256853 is about 921.4033611492.

It can be divided in two parts, 78225 and 6853, that added together give a triangular number (85078 = T₄₁₂).

The spelling of 782256853 in words is "seven hundred eighty-two million, two hundred fifty-six thousand, eight hundred fifty-three".