782696945 has 4 divisors (see below), whose sum is σ = 939236340. Its totient is φ = 626157552.

The previous prime is 782696933. The next prime is 782696947. The reversal of 782696945 is 549696287.

It is a happy number.

782696945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 417466624 + 365230321 = 20432^2 + 19111^2 .

It is a cyclic number.

It is not a de Polignac number, because 782696945 - 2¹² = 782692849 is a prime.

It is a super-2 number, since 2×782696945² = 1225229015424666050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (782696947) 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, 78269690 + ... + 78269699.

It is an arithmetic number, because the mean of its divisors is an integer number (234809085).

Almost surely, 2^782696945 is an apocalyptic number.

It is an amenable number.

782696945 is a deficient number, since it is larger than the sum of its proper divisors (156539395).

782696945 is a wasteful number, since it uses less digits than its factorization.

782696945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156539394.

The product of its digits is 6531840, while the sum is 56.

The square root of 782696945 is about 27976.7214841196. The cubic root of 782696945 is about 921.5761203591.

The spelling of 782696945 in words is "seven hundred eighty-two million, six hundred ninety-six thousand, nine hundred forty-five".