881798431 has 2 divisors, whose sum is σ = 881798432. Its totient is φ = 881798430.

The previous prime is 881798429. The next prime is 881798453. The reversal of 881798431 is 134897188.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 881798431 - 2¹ = 881798429 is a prime.

It is a super-2 number, since 2×881798431² = 1555136945828123522, which contains 22 as substring.

Together with 881798429, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (881793431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440899215 + 440899216.

It is an arithmetic number, because the mean of its divisors is an integer number (440899216).

Almost surely, 2^881798431 is an apocalyptic number.

881798431 is a deficient number, since it is larger than the sum of its proper divisors (1).

881798431 is an equidigital number, since it uses as much as digits as its factorization.

881798431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 49.

The square root of 881798431 is about 29695.0910252856. The cubic root of 881798431 is about 958.9363331193.

The spelling of 881798431 in words is "eight hundred eighty-one million, seven hundred ninety-eight thousand, four hundred thirty-one".