782068613 has 4 divisors (see below), whose sum is σ = 782283180. Its totient is φ = 781854048.

The previous prime is 782068603. The next prime is 782068619. The reversal of 782068613 is 316860287.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 176810209 + 605258404 = 13297^2 + 24602^2 .

It is a cyclic number.

It is not a de Polignac number, because 782068613 - 2¹⁰ = 782067589 is a prime.

It is a super-2 number, since 2×782068613² = 1223262630879487538, 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 (782068619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101720 + ... + 109137.

It is an arithmetic number, because the mean of its divisors is an integer number (195570795).

Almost surely, 2^782068613 is an apocalyptic number.

It is an amenable number.

782068613 is a deficient number, since it is larger than the sum of its proper divisors (214567).

782068613 is a wasteful number, since it uses less digits than its factorization.

782068613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214566.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 782068613 is about 27965.4896792457. The cubic root of 782068613 is about 921.3294472839.

The spelling of 782068613 in words is "seven hundred eighty-two million, sixty-eight thousand, six hundred thirteen".