829323947 has 2 divisors, whose sum is σ = 829323948. Its totient is φ = 829323946.

The previous prime is 829323919. The next prime is 829323961. The reversal of 829323947 is 749323928.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 829323947 - 2¹⁶ = 829258411 is a prime.

It is not a weakly prime, because it can be changed into another prime (829323347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414661973 + 414661974.

It is an arithmetic number, because the mean of its divisors is an integer number (414661974).

Almost surely, 2^829323947 is an apocalyptic number.

829323947 is a deficient number, since it is larger than the sum of its proper divisors (1).

829323947 is an equidigital number, since it uses as much as digits as its factorization.

829323947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 47.

The square root of 829323947 is about 28797.9851204906. The cubic root of 829323947 is about 939.5244112218.

The spelling of 829323947 in words is "eight hundred twenty-nine million, three hundred twenty-three thousand, nine hundred forty-seven".