91394011 has 4 divisors (see below), whose sum is σ = 92421000. Its totient is φ = 90367024.

The previous prime is 91394003. The next prime is 91394027. The reversal of 91394011 is 11049319.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11049319 = 29 ⋅381011.

It is a cyclic number.

It is not a de Polignac number, because 91394011 - 2³ = 91394003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91394041) 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 in 3 ways as a sum of consecutive naturals, for example, 513361 + ... + 513538.

It is an arithmetic number, because the mean of its divisors is an integer number (23105250).

Almost surely, 2^91394011 is an apocalyptic number.

91394011 is a deficient number, since it is larger than the sum of its proper divisors (1026989).

91394011 is a wasteful number, since it uses less digits than its factorization.

91394011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026988.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 91394011 is about 9560.0214957917. The cubic root of 91394011 is about 450.4423814266.

The spelling of 91394011 in words is "ninety-one million, three hundred ninety-four thousand, eleven".