862216 has 8 divisors (see below), whose sum is σ = 1616670. Its totient is φ = 431104.

The previous prime is 862207. The next prime is 862219. The reversal of 862216 is 612268.

It can be written as a sum of positive squares in only one way, i.e., 656100 + 206116 = 810^2 + 454^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (862219) by changing a digit.

862216 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 as a sum of consecutive naturals, namely, 53881 + ... + 53896.

2⁸⁶²²¹⁶ is an apocalyptic number.

It is an amenable number.

862216 is a deficient number, since it is larger than the sum of its proper divisors (754454).

862216 is a wasteful number, since it uses less digits than its factorization.

862216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107783 (or 107779 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 862216 is about 928.5558680015. Note that the first 3 decimals coincide. The cubic root of 862216 is about 95.1784641633.

Adding to 862216 its product of digits (1152), we get a palindrome (863368).

The spelling of 862216 in words is "eight hundred sixty-two thousand, two hundred sixteen".