880721239 has 2 divisors, whose sum is σ = 880721240. Its totient is φ = 880721238.

The previous prime is 880721207. The next prime is 880721263. The reversal of 880721239 is 932127088.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 880721239 - 2⁵ = 880721207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (880721279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440360619 + 440360620.

It is an arithmetic number, because the mean of its divisors is an integer number (440360620).

Almost surely, 2^880721239 is an apocalyptic number.

880721239 is a deficient number, since it is larger than the sum of its proper divisors (1).

880721239 is an equidigital number, since it uses as much as digits as its factorization.

880721239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 880721239 is about 29676.9479394361. The cubic root of 880721239 is about 958.5456998364.

The spelling of 880721239 in words is "eight hundred eighty million, seven hundred twenty-one thousand, two hundred thirty-nine".