826725764 has 6 divisors (see below), whose sum is σ = 1446770094. Its totient is φ = 413362880.

The previous prime is 826725761. The next prime is 826725769. The reversal of 826725764 is 467527628.

It can be written as a sum of positive squares in only one way, i.e., 696537664 + 130188100 = 26392^2 + 11410^2 .

It is a super-2 number, since 2×826725764² = 1366950977722767392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (826725761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103340717 + ... + 103340724.

It is an arithmetic number, because the mean of its divisors is an integer number (241128349).

Almost surely, 2^826725764 is an apocalyptic number.

It is an amenable number.

826725764 is a deficient number, since it is larger than the sum of its proper divisors (620044330).

826725764 is a wasteful number, since it uses less digits than its factorization.

826725764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206681445 (or 206681443 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 47.

The square root of 826725764 is about 28752.8392337174. The cubic root of 826725764 is about 938.5422417501.

The spelling of 826725764 in words is "eight hundred twenty-six million, seven hundred twenty-five thousand, seven hundred sixty-four".