846491 has 4 divisors (see below), whose sum is σ = 851400. Its totient is φ = 841584.

The previous prime is 846487. The next prime is 846493. The reversal of 846491 is 194648.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 846491 - 2² = 846487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (846493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2186 + ... + 2543.

It is an arithmetic number, because the mean of its divisors is an integer number (212850).

2⁸⁴⁶⁴⁹¹ is an apocalyptic number.

846491 is a deficient number, since it is larger than the sum of its proper divisors (4909).

846491 is a wasteful number, since it uses less digits than its factorization.

846491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4908.

The product of its digits is 6912, while the sum is 32.

The square root of 846491 is about 920.0494551925. The cubic root of 846491 is about 94.5962923931.

The spelling of 846491 in words is "eight hundred forty-six thousand, four hundred ninety-one".