881798623 has 2 divisors, whose sum is σ = 881798624. Its totient is φ = 881798622.

The previous prime is 881798543. The next prime is 881798647. The reversal of 881798623 is 326897188.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-881798623 is a prime.

It is a super-2 number, since 2×881798623² = 1555137623049392258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (881798123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440899311 + 440899312.

It is an arithmetic number, because the mean of its divisors is an integer number (440899312).

Almost surely, 2^881798623 is an apocalyptic number.

881798623 is a deficient number, since it is larger than the sum of its proper divisors (1).

881798623 is an equidigital number, since it uses as much as digits as its factorization.

881798623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 52.

The square root of 881798623 is about 29695.0942581430. The cubic root of 881798623 is about 958.9364027179.

The spelling of 881798623 in words is "eight hundred eighty-one million, seven hundred ninety-eight thousand, six hundred twenty-three".