881279533 has 2 divisors, whose sum is σ = 881279534. Its totient is φ = 881279532.

The previous prime is 881279449. The next prime is 881279537. The reversal of 881279533 is 335972188.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 666569124 + 214710409 = 25818^2 + 14653^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-881279533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (881279537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440639766 + 440639767.

It is an arithmetic number, because the mean of its divisors is an integer number (440639767).

Almost surely, 2^881279533 is an apocalyptic number.

It is an amenable number.

881279533 is a deficient number, since it is larger than the sum of its proper divisors (1).

881279533 is an equidigital number, since it uses as much as digits as its factorization.

881279533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 46.

The square root of 881279533 is about 29686.3526388811. The cubic root of 881279533 is about 958.7481995040.

The spelling of 881279533 in words is "eight hundred eighty-one million, two hundred seventy-nine thousand, five hundred thirty-three".