870807611 has 2 divisors, whose sum is σ = 870807612. Its totient is φ = 870807610.

The previous prime is 870807589. The next prime is 870807647. The reversal of 870807611 is 116708078.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-870807611 is a prime.

It is not a weakly prime, because it can be changed into another prime (870807661) 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, 435403805 + 435403806.

It is an arithmetic number, because the mean of its divisors is an integer number (435403806).

Almost surely, 2^870807611 is an apocalyptic number.

870807611 is a deficient number, since it is larger than the sum of its proper divisors (1).

870807611 is an equidigital number, since it uses as much as digits as its factorization.

870807611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 38.

The square root of 870807611 is about 29509.4495204502. The cubic root of 870807611 is about 954.9355734431.

The spelling of 870807611 in words is "eight hundred seventy million, eight hundred seven thousand, six hundred eleven".