860900 has 18 divisors (see below), whose sum is σ = 1868370. Its totient is φ = 344320.

The previous prime is 860891. The next prime is 860911. The reversal of 860900 is 9068.

860900 = T₂₃ + T₂₄ + ... + T₁₇₂.

It can be written as a sum of positive squares in 3 ways, for example, as 10816 + 850084 = 104^2 + 922^2 .

It is a super-2 number, since 2×860900² = 1482297620000, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 860900.

It is an unprimeable number.

860900 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4205 + ... + 4404.

2⁸⁶⁰⁹⁰⁰ is an apocalyptic number.

It is an amenable number.

860900 is an abundant number, since it is smaller than the sum of its proper divisors (1007470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

860900 is a wasteful number, since it uses less digits than its factorization.

860900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8623 (or 8616 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 860900 is about 927.8469701411. The cubic root of 860900 is about 95.1300158864.

Adding to 860900 its reverse (9068), we get a palindrome (869968).

The spelling of 860900 in words is "eight hundred sixty thousand, nine hundred".