91944107 has 2 divisors, whose sum is σ = 91944108. Its totient is φ = 91944106.

The previous prime is 91944101. The next prime is 91944121. The reversal of 91944107 is 70144919.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91944107 - 2⁴ = 91944091 is a prime.

It is not a weakly prime, because it can be changed into another prime (91944101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45972053 + 45972054.

It is an arithmetic number, because the mean of its divisors is an integer number (45972054).

Almost surely, 2^91944107 is an apocalyptic number.

91944107 is a deficient number, since it is larger than the sum of its proper divisors (1).

91944107 is an equidigital number, since it uses as much as digits as its factorization.

91944107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 91944107 is about 9588.7489799243. The cubic root of 91944107 is about 451.3443043825.

The spelling of 91944107 in words is "ninety-one million, nine hundred forty-four thousand, one hundred seven".