823026728 has 16 divisors (see below), whose sum is σ = 1596388500. Its totient is φ = 397323136.

The previous prime is 823026713. The next prime is 823026761. The reversal of 823026728 is 827620328.

It can be written as a sum of positive squares in 2 ways, for example, as 795127204 + 27899524 = 28198^2 + 5282^2 .

It is a junction number, because it is equal to n+sod(n) for n = 823026691 and 823026700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1773533 + ... + 1773996.

Almost surely, 2^823026728 is an apocalyptic number.

It is an amenable number.

823026728 is a deficient number, since it is larger than the sum of its proper divisors (773361772).

823026728 is a wasteful number, since it uses less digits than its factorization.

823026728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3547564 (or 3547560 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 823026728 is about 28688.4424115357. The cubic root of 823026728 is about 937.1403692729.

The spelling of 823026728 in words is "eight hundred twenty-three million, twenty-six thousand, seven hundred twenty-eight".