842352881 has 2 divisors, whose sum is σ = 842352882. Its totient is φ = 842352880.

The previous prime is 842352869. The next prime is 842352887. The reversal of 842352881 is 188253248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 638320225 + 204032656 = 25265^2 + 14284^2 .

It is a cyclic number.

It is not a de Polignac number, because 842352881 - 2¹⁰ = 842351857 is a prime.

It is a super-2 number, since 2×842352881² = 1419116752258000322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (842352887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421176440 + 421176441.

It is an arithmetic number, because the mean of its divisors is an integer number (421176441).

Almost surely, 2^842352881 is an apocalyptic number.

It is an amenable number.

842352881 is a deficient number, since it is larger than the sum of its proper divisors (1).

842352881 is an equidigital number, since it uses as much as digits as its factorization.

842352881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122880, while the sum is 41.

The square root of 842352881 is about 29023.3161613211. The cubic root of 842352881 is about 944.4189408717.

The spelling of 842352881 in words is "eight hundred forty-two million, three hundred fifty-two thousand, eight hundred eighty-one".