91726441 has 8 divisors (see below), whose sum is σ = 99747720. Its totient is φ = 83996928.

The previous prime is 91726421. The next prime is 91726501. The reversal of 91726441 is 14462719.

It can be written as a sum of positive squares in 4 ways, for example, as 24010000 + 67716441 = 4900^2 + 8229^2 .

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 91726441 - 2⁵ = 91726409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91726397 and 91726406.

It is not an unprimeable number, because it can be changed into a prime (91726421) 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, 72286 + ... + 73543.

It is an arithmetic number, because the mean of its divisors is an integer number (12468465).

Almost surely, 2^91726441 is an apocalyptic number.

It is an amenable number.

91726441 is a deficient number, since it is larger than the sum of its proper divisors (8021279).

91726441 is a wasteful number, since it uses less digits than its factorization.

91726441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145883.

The product of its digits is 12096, while the sum is 34.

The square root of 91726441 is about 9577.3921815910. The cubic root of 91726441 is about 450.9878561732.

The spelling of 91726441 in words is "ninety-one million, seven hundred twenty-six thousand, four hundred forty-one".