835829921 has 2 divisors, whose sum is σ = 835829922. Its totient is φ = 835829920.

The previous prime is 835829777. The next prime is 835829927. The reversal of 835829921 is 129928538.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 800890000 + 34939921 = 28300^2 + 5911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-835829921 is a prime.

It is a super-2 number, since 2×835829921² = 1397223313677732482, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (835829927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417914960 + 417914961.

It is an arithmetic number, because the mean of its divisors is an integer number (417914961).

Almost surely, 2^835829921 is an apocalyptic number.

It is an amenable number.

835829921 is a deficient number, since it is larger than the sum of its proper divisors (1).

835829921 is an equidigital number, since it uses as much as digits as its factorization.

835829921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 47.

The square root of 835829921 is about 28910.7232873894. The cubic root of 835829921 is about 941.9748435485.

The spelling of 835829921 in words is "eight hundred thirty-five million, eight hundred twenty-nine thousand, nine hundred twenty-one".