861002 has 8 divisors (see below), whose sum is σ = 1300512. Its totient is φ = 427500.

The previous prime is 861001. The next prime is 861013. The reversal of 861002 is 200168.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (861001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1124 + ... + 1727.

It is an arithmetic number, because the mean of its divisors is an integer number (162564).

2⁸⁶¹⁰⁰² is an apocalyptic number.

861002 is a deficient number, since it is larger than the sum of its proper divisors (439510).

861002 is a wasteful number, since it uses less digits than its factorization.

861002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 861002 is about 927.9019344737. The cubic root of 861002 is about 95.1337727604.

The spelling of 861002 in words is "eight hundred sixty-one thousand, two".