91798263 has 6 divisors (see below), whose sum is σ = 132597504. Its totient is φ = 61198836.

The previous prime is 91798261. The next prime is 91798271. The reversal of 91798263 is 36289719.

It is not a de Polignac number, because 91798263 - 2¹ = 91798261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91798261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5099895 + ... + 5099912.

It is an arithmetic number, because the mean of its divisors is an integer number (22099584).

Almost surely, 2^91798263 is an apocalyptic number.

91798263 is a deficient number, since it is larger than the sum of its proper divisors (40799241).

91798263 is a wasteful number, since it uses less digits than its factorization.

91798263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10199813 (or 10199810 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 91798263 is about 9581.1410072079. The cubic root of 91798263 is about 451.1055336175.

The spelling of 91798263 in words is "ninety-one million, seven hundred ninety-eight thousand, two hundred sixty-three".