91065008 has 10 divisors (see below), whose sum is σ = 176438484. Its totient is φ = 45532496.

The previous prime is 91065001. The next prime is 91065053. The reversal of 91065008 is 80056019.

It is not an unprimeable number, because it can be changed into a prime (91065001) 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 as a sum of consecutive naturals, namely, 2845766 + ... + 2845797.

Almost surely, 2^91065008 is an apocalyptic number.

It is an amenable number.

91065008 is a deficient number, since it is larger than the sum of its proper divisors (85373476).

91065008 is a wasteful number, since it uses less digits than its factorization.

91065008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5691571 (or 5691565 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 91065008 is about 9542.7987508906. The cubic root of 91065008 is about 449.9012260576.

The spelling of 91065008 in words is "ninety-one million, sixty-five thousand, eight".