828747538 has 16 divisors (see below), whose sum is σ = 1283938776. Its totient is φ = 400982400.

The previous prime is 828747511. The next prime is 828747547. The reversal of 828747538 is 835747828.

828747538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 603537489 + 225210049 = 24567^2 + 15007^2 .

It is a super-2 number, since 2×828747538² = 1373644963482122888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45813 + ... + 61288.

Almost surely, 2^828747538 is an apocalyptic number.

828747538 is a deficient number, since it is larger than the sum of its proper divisors (455191238).

828747538 is a wasteful number, since it uses less digits than its factorization.

828747538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107229.

The product of its digits is 3010560, while the sum is 52.

The square root of 828747538 is about 28787.9755800925. The cubic root of 828747538 is about 939.3066933878.

The spelling of 828747538 in words is "eight hundred twenty-eight million, seven hundred forty-seven thousand, five hundred thirty-eight".