881323613 has 2 divisors, whose sum is σ = 881323614. Its totient is φ = 881323612.

The previous prime is 881323511. The next prime is 881323633. The reversal of 881323613 is 316323188.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 674596729 + 206726884 = 25973^2 + 14378^2 .

It is a cyclic number.

It is not a de Polignac number, because 881323613 - 2²⁶ = 814214749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (881323633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440661806 + 440661807.

It is an arithmetic number, because the mean of its divisors is an integer number (440661807).

Almost surely, 2^881323613 is an apocalyptic number.

It is an amenable number.

881323613 is a deficient number, since it is larger than the sum of its proper divisors (1).

881323613 is an equidigital number, since it uses as much as digits as its factorization.

881323613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The square root of 881323613 is about 29687.0950582909. The cubic root of 881323613 is about 958.7641841848.

The spelling of 881323613 in words is "eight hundred eighty-one million, three hundred twenty-three thousand, six hundred thirteen".