880645005 has 12 divisors (see below), whose sum is σ = 1526451420. Its totient is φ = 469677312.

The previous prime is 880644997. The next prime is 880645013. The reversal of 880645005 is 500546088.

It is a happy number.

880645005 is a `hidden beast` number, since 8 + 8 + 0 + 645 + 0 + 0 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (880644997) and next prime (880645013).

It can be written as a sum of positive squares in 2 ways, for example, as 674492841 + 206152164 = 25971^2 + 14358^2 .

It is not a de Polignac number, because 880645005 - 2³ = 880644997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9784900 + ... + 9784989.

It is an arithmetic number, because the mean of its divisors is an integer number (127204285).

Almost surely, 2^880645005 is an apocalyptic number.

It is an amenable number.

880645005 is a deficient number, since it is larger than the sum of its proper divisors (645806415).

880645005 is a wasteful number, since it uses less digits than its factorization.

880645005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19569900 (or 19569897 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 880645005 is about 29675.6635140649. The cubic root of 880645005 is about 958.5180422462.

The spelling of 880645005 in words is "eight hundred eighty million, six hundred forty-five thousand, five".