10391912 has 8 divisors (see below), whose sum is σ = 19484850. Its totient is φ = 5195952.

The previous prime is 10391911. The next prime is 10391921. The reversal of 10391912 is 21919301.

It can be written as a sum of positive squares in only one way, i.e., 8099716 + 2292196 = 2846^2 + 1514^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (10391911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649487 + ... + 649502.

Almost surely, 2^10391912 is an apocalyptic number.

It is an amenable number.

10391912 is a deficient number, since it is larger than the sum of its proper divisors (9092938).

10391912 is a wasteful number, since it uses less digits than its factorization.

10391912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298995 (or 1298991 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 10391912 is about 3223.6488642531. The cubic root of 10391912 is about 218.2219774141.

The spelling of 10391912 in words is "ten million, three hundred ninety-one thousand, nine hundred twelve".