91910002 has 8 divisors (see below), whose sum is σ = 138210012. Its totient is φ = 45840000.

The previous prime is 91909969. The next prime is 91910017. The reversal of 91910002 is 20001919.

It can be written as a sum of positive squares in 2 ways, for example, as 80478841 + 11431161 = 8971^2 + 3381^2 .

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

It is an unprimeable number.

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, 56499 + ... + 58102.

Almost surely, 2^91910002 is an apocalyptic number.

91910002 is a deficient number, since it is larger than the sum of its proper divisors (46300010).

91910002 is a wasteful number, since it uses less digits than its factorization.

91910002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115004.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 91910002 is about 9586.9704286599. The cubic root of 91910002 is about 451.2884914846.

The spelling of 91910002 in words is "ninety-one million, nine hundred ten thousand, two".