91844461 has 8 divisors (see below), whose sum is σ = 96778880. Its totient is φ = 86920128.

The previous prime is 91844437. The next prime is 91844503. The reversal of 91844461 is 16444819.

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

It is a cyclic number.

It is not a de Polignac number, because 91844461 - 2⁵ = 91844429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91844461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91844411) 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, 22780 + ... + 26506.

It is an arithmetic number, because the mean of its divisors is an integer number (12097360).

Almost surely, 2^91844461 is an apocalyptic number.

It is an amenable number.

91844461 is a deficient number, since it is larger than the sum of its proper divisors (4934419).

91844461 is a wasteful number, since it uses less digits than its factorization.

91844461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5043.

The product of its digits is 27648, while the sum is 37.

The square root of 91844461 is about 9583.5515859205. The cubic root of 91844461 is about 451.1811947385.

The spelling of 91844461 in words is "ninety-one million, eight hundred forty-four thousand, four hundred sixty-one".