880783681 has 2 divisors, whose sum is σ = 880783682. Its totient is φ = 880783680.

The previous prime is 880783667. The next prime is 880783721. The reversal of 880783681 is 186387088.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 824608656 + 56175025 = 28716^2 + 7495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-880783681 is a prime.

It is a super-2 number, since 2×880783681² = 1551559785431819522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (880783081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440391840 + 440391841.

It is an arithmetic number, because the mean of its divisors is an integer number (440391841).

Almost surely, 2^880783681 is an apocalyptic number.

It is an amenable number.

880783681 is a deficient number, since it is larger than the sum of its proper divisors (1).

880783681 is an equidigital number, since it uses as much as digits as its factorization.

880783681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 49.

The square root of 880783681 is about 29677.9999494575. Note that the first 4 decimals coincide. The cubic root of 880783681 is about 958.5683525190.

The spelling of 880783681 in words is "eight hundred eighty million, seven hundred eighty-three thousand, six hundred eighty-one".