782072939 has 2 divisors, whose sum is σ = 782072940. Its totient is φ = 782072938.

The previous prime is 782072911. The next prime is 782072971. The reversal of 782072939 is 939270287.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 782072939 - 2¹⁶ = 782007403 is a prime.

It is a super-2 number, since 2×782072939² = 1223276163832195442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 782072893 and 782072902.

It is not a weakly prime, because it can be changed into another prime (782072989) 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 as a sum of consecutive naturals, namely, 391036469 + 391036470.

It is an arithmetic number, because the mean of its divisors is an integer number (391036470).

Almost surely, 2^782072939 is an apocalyptic number.

782072939 is a deficient number, since it is larger than the sum of its proper divisors (1).

782072939 is an equidigital number, since it uses as much as digits as its factorization.

782072939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 782072939 is about 27965.5670244678. The cubic root of 782072939 is about 921.3311460538.

The spelling of 782072939 in words is "seven hundred eighty-two million, seventy-two thousand, nine hundred thirty-nine".