881243197 has 2 divisors, whose sum is σ = 881243198. Its totient is φ = 881243196.

The previous prime is 881243173. The next prime is 881243203. The reversal of 881243197 is 791342188.

881243197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 819447876 + 61795321 = 28626^2 + 7861^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-881243197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (881243117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440621598 + 440621599.

It is an arithmetic number, because the mean of its divisors is an integer number (440621599).

Almost surely, 2^881243197 is an apocalyptic number.

It is an amenable number.

881243197 is a deficient number, since it is larger than the sum of its proper divisors (1).

881243197 is an equidigital number, since it uses as much as digits as its factorization.

881243197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 43.

The square root of 881243197 is about 29685.7406341833. The cubic root of 881243197 is about 958.7350226204.

The spelling of 881243197 in words is "eight hundred eighty-one million, two hundred forty-three thousand, one hundred ninety-seven".