91948922 has 16 divisors (see below), whose sum is σ = 152548872. Its totient is φ = 41290560.

The previous prime is 91948907. The next prime is 91948931. The reversal of 91948922 is 22984919.

It is a Cunningham number, because it is equal to 9589²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 91948921 + 1 = 9589^2 + 1^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46829 + ... + 48752.

Almost surely, 2^91948922 is an apocalyptic number.

91948922 is a deficient number, since it is larger than the sum of its proper divisors (60599950).

91948922 is a wasteful number, since it uses less digits than its factorization.

91948922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95633.

The product of its digits is 93312, while the sum is 44.

The square root of 91948922 is about 9589.0000521431. Note that the first 4 decimals coincide. The cubic root of 91948922 is about 451.3521830273.

The spelling of 91948922 in words is "ninety-one million, nine hundred forty-eight thousand, nine hundred twenty-two".