828572747 has 2 divisors, whose sum is σ = 828572748. Its totient is φ = 828572746.

The previous prime is 828572737. The next prime is 828572807. The reversal of 828572747 is 747275828.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 828572747 - 2⁶ = 828572683 is a prime.

It is a super-2 number, since 2×828572747² = 1373065594142252018, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 828572695 and 828572704.

It is not a weakly prime, because it can be changed into another prime (828572737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414286373 + 414286374.

It is an arithmetic number, because the mean of its divisors is an integer number (414286374).

Almost surely, 2^828572747 is an apocalyptic number.

828572747 is a deficient number, since it is larger than the sum of its proper divisors (1).

828572747 is an equidigital number, since it uses as much as digits as its factorization.

828572747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1756160, while the sum is 50.

The square root of 828572747 is about 28784.9395865268. The cubic root of 828572747 is about 939.2406524072.

The spelling of 828572747 in words is "eight hundred twenty-eight million, five hundred seventy-two thousand, seven hundred forty-seven".