861360659 has 2 divisors, whose sum is σ = 861360660. Its totient is φ = 861360658.

The previous prime is 861360589. The next prime is 861360671. The reversal of 861360659 is 956063168.

861360659 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-861360659 is a prime.

It is not a weakly prime, because it can be changed into another prime (861360359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430680329 + 430680330.

It is an arithmetic number, because the mean of its divisors is an integer number (430680330).

Almost surely, 2^861360659 is an apocalyptic number.

861360659 is a deficient number, since it is larger than the sum of its proper divisors (1).

861360659 is an equidigital number, since it uses as much as digits as its factorization.

861360659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 861360659 is about 29348.9464717219. The cubic root of 861360659 is about 951.4698056834.

The spelling of 861360659 in words is "eight hundred sixty-one million, three hundred sixty thousand, six hundred fifty-nine".