828492491 has 2 divisors, whose sum is σ = 828492492. Its totient is φ = 828492490.

The previous prime is 828492463. The next prime is 828492523. The reversal of 828492491 is 194294828.

It is a happy number.

828492491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 828492491 - 2¹⁰ = 828491467 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (828492421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414246245 + 414246246.

It is an arithmetic number, because the mean of its divisors is an integer number (414246246).

Almost surely, 2^828492491 is an apocalyptic number.

828492491 is a deficient number, since it is larger than the sum of its proper divisors (1).

828492491 is an equidigital number, since it uses as much as digits as its factorization.

828492491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 47.

The square root of 828492491 is about 28783.5454904360. The cubic root of 828492491 is about 939.2103263106.

The spelling of 828492491 in words is "eight hundred twenty-eight million, four hundred ninety-two thousand, four hundred ninety-one".