846645 has 8 divisors (see below), whose sum is σ = 1354656. Its totient is φ = 451536.

The previous prime is 846589. The next prime is 846647. The reversal of 846645 is 546648.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 846645 - 2⁸ = 846389 is a prime.

846645 is a lucky number.

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 846645.

It is not an unprimeable number, because it can be changed into a prime (846647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28207 + ... + 28236.

It is an arithmetic number, because the mean of its divisors is an integer number (169332).

2⁸⁴⁶⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

846645 is a deficient number, since it is larger than the sum of its proper divisors (508011).

846645 is a wasteful number, since it uses less digits than its factorization.

846645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56451.

The product of its digits is 23040, while the sum is 33.

The square root of 846645 is about 920.1331425397. The cubic root of 846645 is about 94.6020286013.

The spelling of 846645 in words is "eight hundred forty-six thousand, six hundred forty-five".