841792121 has 2 divisors, whose sum is σ = 841792122. Its totient is φ = 841792120.

The previous prime is 841792109. The next prime is 841792151. The reversal of 841792121 is 121297148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 837465721 + 4326400 = 28939^2 + 2080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-841792121 is a prime.

It is a super-2 number, since 2×841792121² = 1417227949955357282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (841792151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420896060 + 420896061.

It is an arithmetic number, because the mean of its divisors is an integer number (420896061).

Almost surely, 2^841792121 is an apocalyptic number.

It is an amenable number.

841792121 is a deficient number, since it is larger than the sum of its proper divisors (1).

841792121 is an equidigital number, since it uses as much as digits as its factorization.

841792121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 35.

The square root of 841792121 is about 29013.6540442599. The cubic root of 841792121 is about 944.2093256624.

The spelling of 841792121 in words is "eight hundred forty-one million, seven hundred ninety-two thousand, one hundred twenty-one".