860633491 has 2 divisors, whose sum is σ = 860633492. Its totient is φ = 860633490.

The previous prime is 860633479. The next prime is 860633533. The reversal of 860633491 is 194336068.

860633491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 860633491 - 2⁷ = 860633363 is a prime.

It is not a weakly prime, because it can be changed into another prime (860633441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430316745 + 430316746.

It is an arithmetic number, because the mean of its divisors is an integer number (430316746).

Almost surely, 2^860633491 is an apocalyptic number.

860633491 is a deficient number, since it is larger than the sum of its proper divisors (1).

860633491 is an equidigital number, since it uses as much as digits as its factorization.

860633491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 860633491 is about 29336.5555408265. Note that the first 4 decimals coincide. The cubic root of 860633491 is about 951.2019840006.

The spelling of 860633491 in words is "eight hundred sixty million, six hundred thirty-three thousand, four hundred ninety-one".