91766401 has 8 divisors (see below), whose sum is σ = 94392000. Its totient is φ = 89148528.

The previous prime is 91766393. The next prime is 91766407. The reversal of 91766401 is 10466719.

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 91766401 - 2³ = 91766393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91766407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29100 + ... + 32098.

It is an arithmetic number, because the mean of its divisors is an integer number (11799000).

Almost surely, 2^91766401 is an apocalyptic number.

It is an amenable number.

91766401 is a deficient number, since it is larger than the sum of its proper divisors (2625599).

91766401 is a wasteful number, since it uses less digits than its factorization.

91766401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 91766401 is about 9579.4781173089. The cubic root of 91766401 is about 451.0533365959.

The spelling of 91766401 in words is "ninety-one million, seven hundred sixty-six thousand, four hundred one".