91406099 has 2 divisors, whose sum is σ = 91406100. Its totient is φ = 91406098.

The previous prime is 91406069. The next prime is 91406101. The reversal of 91406099 is 99060419.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91406099 - 2¹⁶ = 91340563 is a prime.

Together with 91406101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91406009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45703049 + 45703050.

It is an arithmetic number, because the mean of its divisors is an integer number (45703050).

Almost surely, 2^91406099 is an apocalyptic number.

91406099 is a deficient number, since it is larger than the sum of its proper divisors (1).

91406099 is an equidigital number, since it uses as much as digits as its factorization.

91406099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 91406099 is about 9560.6536910402. The cubic root of 91406099 is about 450.4622394290.

The spelling of 91406099 in words is "ninety-one million, four hundred six thousand, ninety-nine".