861484966 has 16 divisors (see below), whose sum is σ = 1360814400. Its totient is φ = 407899368.

The previous prime is 861484963. The next prime is 861484973. The reversal of 861484966 is 669484168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861484963) 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 7 ways as a sum of consecutive naturals, for example, 159181 + ... + 164503.

It is an arithmetic number, because the mean of its divisors is an integer number (85050900).

Almost surely, 2^861484966 is an apocalyptic number.

861484966 is a deficient number, since it is larger than the sum of its proper divisors (499329434).

861484966 is a wasteful number, since it uses less digits than its factorization.

861484966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9603.

The product of its digits is 1990656, while the sum is 52.

The square root of 861484966 is about 29351.0641374380. The cubic root of 861484966 is about 951.5155738398.

The spelling of 861484966 in words is "eight hundred sixty-one million, four hundred eighty-four thousand, nine hundred sixty-six".