845676 has 54 divisors (see below), whose sum is σ = 2331420. Its totient is φ = 258336.

The previous prime is 845659. The next prime is 845683. The reversal of 845676 is 676548.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 845676.

It is an unprimeable number.

845676 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 17 ways as a sum of consecutive naturals, for example, 6015 + ... + 6153.

2⁸⁴⁵⁶⁷⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 845676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1165710).

845676 is an abundant number, since it is smaller than the sum of its proper divisors (1485744).

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

845676 is a wasteful number, since it uses less digits than its factorization.

845676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 157 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 845676 is about 919.6064375590. The cubic root of 845676 is about 94.5659235984.

It can be divided in two parts, 845 and 676, that added together give a square (1521 = 39²).

The spelling of 845676 in words is "eight hundred forty-five thousand, six hundred seventy-six".