846091561 has 8 divisors (see below), whose sum is σ = 969400640. Its totient is φ = 723392208.

The previous prime is 846091549. The next prime is 846091573. The reversal of 846091561 is 165190648.

846091561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (846091549) and next prime (846091573).

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

It is not a de Polignac number, because 846091561 - 2¹³ = 846083369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (846001561) 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, 149451 + ... + 155008.

It is an arithmetic number, because the mean of its divisors is an integer number (121175080).

Almost surely, 2^846091561 is an apocalyptic number.

It is an amenable number.

846091561 is a deficient number, since it is larger than the sum of its proper divisors (123309079).

846091561 is a wasteful number, since it uses less digits than its factorization.

846091561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304863.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 846091561 is about 29087.6530679256. The cubic root of 846091561 is about 945.8141080418.

The spelling of 846091561 in words is "eight hundred forty-six million, ninety-one thousand, five hundred sixty-one".