861468039 has 12 divisors (see below), whose sum is σ = 1259335896. Its totient is φ = 567392112.

The previous prime is 861468017. The next prime is 861468053. The reversal of 861468039 is 930864168.

It is not a de Polignac number, because 861468039 - 2⁹ = 861467527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 861467985 and 861468003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861468239) 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 in 11 ways as a sum of consecutive naturals, for example, 575872 + ... + 577365.

It is an arithmetic number, because the mean of its divisors is an integer number (104944658).

Almost surely, 2^861468039 is an apocalyptic number.

861468039 is a deficient number, since it is larger than the sum of its proper divisors (397867857).

861468039 is a wasteful number, since it uses less digits than its factorization.

861468039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153326 (or 1153323 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 861468039 is about 29350.7757819108. The cubic root of 861468039 is about 951.5093418062.

The spelling of 861468039 in words is "eight hundred sixty-one million, four hundred sixty-eight thousand, thirty-nine".