91226803 has 4 divisors (see below), whose sum is σ = 92773080. Its totient is φ = 89680528.

The previous prime is 91226761. The next prime is 91226819. The reversal of 91226803 is 30862219.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91226803 - 2²⁵ = 57672371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91226203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773050 + ... + 773167.

It is an arithmetic number, because the mean of its divisors is an integer number (23193270).

Almost surely, 2^91226803 is an apocalyptic number.

91226803 is a deficient number, since it is larger than the sum of its proper divisors (1546277).

91226803 is a wasteful number, since it uses less digits than its factorization.

91226803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546276.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 91226803 is about 9551.2723236226. The cubic root of 91226803 is about 450.1675145889.

It can be divided in two parts, 91226 and 803, that added together give a palindrome (92029).

The spelling of 91226803 in words is "ninety-one million, two hundred twenty-six thousand, eight hundred three".