782165838 has 32 divisors (see below), whose sum is σ = 1597244832. Its totient is φ = 255257600.

The previous prime is 782165833. The next prime is 782165863. The reversal of 782165838 is 838561287.

It is a super-2 number, since 2×782165838² = 1223566796268484488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (782165831) 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 15 ways as a sum of consecutive naturals, for example, 163318 + ... + 168038.

It is an arithmetic number, because the mean of its divisors is an integer number (49913901).

Almost surely, 2^782165838 is an apocalyptic number.

782165838 is an abundant number, since it is smaller than the sum of its proper divisors (815078994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

782165838 is a wasteful number, since it uses less digits than its factorization.

782165838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5300.

The product of its digits is 645120, while the sum is 48.

The square root of 782165838 is about 27967.2279284165. The cubic root of 782165838 is about 921.3676248991.

The spelling of 782165838 in words is "seven hundred eighty-two million, one hundred sixty-five thousand, eight hundred thirty-eight".