862245 has 20 divisors (see below), whose sum is σ = 1546380. Its totient is φ = 459648.

The previous prime is 862241. The next prime is 862249. The reversal of 862245 is 542268.

It is an interprime number because it is at equal distance from previous prime (862241) and next prime (862249).

It can be written as a sum of positive squares in 2 ways, for example, as 263169 + 599076 = 513^2 + 774^2 .

It is not a de Polignac number, because 862245 - 2² = 862241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (862241) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 660 + ... + 1469.

It is an arithmetic number, because the mean of its divisors is an integer number (77319).

2⁸⁶²²⁴⁵ is an apocalyptic number.

It is an amenable number.

862245 is a deficient number, since it is larger than the sum of its proper divisors (684135).

862245 is a wasteful number, since it uses less digits than its factorization.

862245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146 (or 2137 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 862245 is about 928.5714835165. The cubic root of 862245 is about 95.1795312372.

The spelling of 862245 in words is "eight hundred sixty-two thousand, two hundred forty-five".