91010067 has 8 divisors (see below), whose sum is σ = 121513920. Its totient is φ = 60589800.

The previous prime is 91010041. The next prime is 91010069. The reversal of 91010067 is 76001019.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91010067 - 2⁷ = 91009939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91010069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18309 + ... + 22742.

It is an arithmetic number, because the mean of its divisors is an integer number (15189240).

Almost surely, 2^91010067 is an apocalyptic number.

91010067 is a deficient number, since it is larger than the sum of its proper divisors (30503853).

91010067 is a wasteful number, since it uses less digits than its factorization.

91010067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41793.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 91010067 is about 9539.9196537497. The cubic root of 91010067 is about 449.8107302810.

The spelling of 91010067 in words is "ninety-one million, ten thousand, sixty-seven".