881328779 has 2 divisors, whose sum is σ = 881328780. Its totient is φ = 881328778.

The previous prime is 881328709. The next prime is 881328823. The reversal of 881328779 is 977823188.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 881328779 - 2⁸ = 881328523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 881328779.

It is not a weakly prime, because it can be changed into another prime (881328709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440664389 + 440664390.

It is an arithmetic number, because the mean of its divisors is an integer number (440664390).

Almost surely, 2^881328779 is an apocalyptic number.

881328779 is a deficient number, since it is larger than the sum of its proper divisors (1).

881328779 is an equidigital number, since it uses as much as digits as its factorization.

881328779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1354752, while the sum is 53.

The square root of 881328779 is about 29687.1820656660. The cubic root of 881328779 is about 958.7660574907.

The spelling of 881328779 in words is "eight hundred eighty-one million, three hundred twenty-eight thousand, seven hundred seventy-nine".