880631749 has 2 divisors, whose sum is σ = 880631750. Its totient is φ = 880631748.

The previous prime is 880631737. The next prime is 880631837. The reversal of 880631749 is 947136088.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 845762724 + 34869025 = 29082^2 + 5905^2 .

It is a cyclic number.

It is not a de Polignac number, because 880631749 - 2¹⁵ = 880598981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 880631699 and 880631708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (880601749) 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, 440315874 + 440315875.

It is an arithmetic number, because the mean of its divisors is an integer number (440315875).

Almost surely, 2^880631749 is an apocalyptic number.

It is an amenable number.

880631749 is a deficient number, since it is larger than the sum of its proper divisors (1).

880631749 is an equidigital number, since it uses as much as digits as its factorization.

880631749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 880631749 is about 29675.4401652275. The cubic root of 880631749 is about 958.5132328247.

The spelling of 880631749 in words is "eight hundred eighty million, six hundred thirty-one thousand, seven hundred forty-nine".