861578483 has 2 divisors, whose sum is σ = 861578484. Its totient is φ = 861578482.

The previous prime is 861578453. The next prime is 861578521. The reversal of 861578483 is 384875168.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 861578483 - 2⁸ = 861578227 is a prime.

It is not a weakly prime, because it can be changed into another prime (861578453) by changing a digit.

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 as a sum of consecutive naturals, namely, 430789241 + 430789242.

It is an arithmetic number, because the mean of its divisors is an integer number (430789242).

Almost surely, 2^861578483 is an apocalyptic number.

861578483 is a deficient number, since it is larger than the sum of its proper divisors (1).

861578483 is an equidigital number, since it uses as much as digits as its factorization.

861578483 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 50.

The square root of 861578483 is about 29352.6571710297. The cubic root of 861578483 is about 951.5500026326.

The spelling of 861578483 in words is "eight hundred sixty-one million, five hundred seventy-eight thousand, four hundred eighty-three".