10091908 has 6 divisors (see below), whose sum is σ = 17660846. Its totient is φ = 5045952.

The previous prime is 10091899. The next prime is 10091909. The reversal of 10091908 is 80919001.

It can be written as a sum of positive squares in only one way, i.e., 5391684 + 4700224 = 2322^2 + 2168^2 .

It is not an unprimeable number, because it can be changed into a prime (10091909) 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, 1261485 + ... + 1261492.

Almost surely, 2^10091908 is an apocalyptic number.

It is an amenable number.

10091908 is a deficient number, since it is larger than the sum of its proper divisors (7568938).

10091908 is a wasteful number, since it uses less digits than its factorization.

10091908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522981 (or 2522979 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 10091908 is about 3176.7763534753. The cubic root of 10091908 is about 216.1014898008.

The spelling of 10091908 in words is "ten million, ninety-one thousand, nine hundred eight".