845270 has 16 divisors (see below), whose sum is σ = 1533168. Its totient is φ = 335520.

The previous prime is 845261. The next prime is 845279. The reversal of 845270 is 72548.

845270 = 196² + 197² + ... + 215².

It is an interprime number because it is at equal distance from previous prime (845261) and next prime (845279).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845279) by changing a digit.

845270 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 7 ways as a sum of consecutive naturals, for example, 1577 + ... + 2043.

It is an arithmetic number, because the mean of its divisors is an integer number (95823).

2⁸⁴⁵²⁷⁰ is an apocalyptic number.

845270 is a deficient number, since it is larger than the sum of its proper divisors (687898).

845270 is a wasteful number, since it uses less digits than its factorization.

845270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 845270 is about 919.3856644521. The cubic root of 845270 is about 94.5507878133.

It can be divided in two parts, 845 and 270, that multiplied together give a triangular number (228150 = T₆₇₅).

The spelling of 845270 in words is "eight hundred forty-five thousand, two hundred seventy".