91060999 has 2 divisors, whose sum is σ = 91061000. Its totient is φ = 91060998.

The previous prime is 91060997. The next prime is 91061039. The reversal of 91060999 is 99906019.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91060999 - 2¹ = 91060997 is a prime.

Together with 91060997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91060997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45530499 + 45530500.

It is an arithmetic number, because the mean of its divisors is an integer number (45530500).

Almost surely, 2^91060999 is an apocalyptic number.

91060999 is a deficient number, since it is larger than the sum of its proper divisors (1).

91060999 is an equidigital number, since it uses as much as digits as its factorization.

91060999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39366, while the sum is 43.

The square root of 91060999 is about 9542.5886948983. The cubic root of 91060999 is about 449.8946238858.

The spelling of 91060999 in words is "ninety-one million, sixty thousand, nine hundred ninety-nine".