828764831 has 2 divisors, whose sum is σ = 828764832. Its totient is φ = 828764830.

The previous prime is 828764803. The next prime is 828764837. The reversal of 828764831 is 138467828.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 828764831 - 2¹⁸ = 828502687 is a prime.

It is a super-2 number, since 2×828764831² = 1373702290204917122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (828764837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414382415 + 414382416.

It is an arithmetic number, because the mean of its divisors is an integer number (414382416).

Almost surely, 2^828764831 is an apocalyptic number.

828764831 is a deficient number, since it is larger than the sum of its proper divisors (1).

828764831 is an equidigital number, since it uses as much as digits as its factorization.

828764831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 516096, while the sum is 47.

The square root of 828764831 is about 28788.2759296211. The cubic root of 828764831 is about 939.3132266672.

The spelling of 828764831 in words is "eight hundred twenty-eight million, seven hundred sixty-four thousand, eight hundred thirty-one".