861485302 has 12 divisors (see below), whose sum is σ = 1372713660. Its totient is φ = 405404576.

The previous prime is 861485221. The next prime is 861485311. The reversal of 861485302 is 203584168.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 744652 + ... + 745807.

It is an arithmetic number, because the mean of its divisors is an integer number (114392805).

Almost surely, 2^861485302 is an apocalyptic number.

861485302 is a deficient number, since it is larger than the sum of its proper divisors (511228358).

861485302 is a wasteful number, since it uses less digits than its factorization.

861485302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490495 (or 1490478 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 861485302 is about 29351.0698612504. The cubic root of 861485302 is about 951.5156975445.

The spelling of 861485302 in words is "eight hundred sixty-one million, four hundred eighty-five thousand, three hundred two".