91768841 has 8 divisors (see below), whose sum is σ = 96705120. Its totient is φ = 86843232.

The previous prime is 91768823. The next prime is 91768861. The reversal of 91768841 is 14886719.

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 91768841 - 2¹⁰ = 91767817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91768792 and 91768801.

It is not an unprimeable number, because it can be changed into a prime (91768801) 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, 20021 + ... + 24173.

It is an arithmetic number, because the mean of its divisors is an integer number (12088140).

Almost surely, 2^91768841 is an apocalyptic number.

It is an amenable number.

91768841 is a deficient number, since it is larger than the sum of its proper divisors (4936279).

91768841 is a wasteful number, since it uses less digits than its factorization.

91768841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5335.

The product of its digits is 96768, while the sum is 44.

The square root of 91768841 is about 9579.6054720432. The cubic root of 91768841 is about 451.0573342842.

The spelling of 91768841 in words is "ninety-one million, seven hundred sixty-eight thousand, eight hundred forty-one".