10391916 has 12 divisors (see below), whose sum is σ = 24247832. Its totient is φ = 3463968.

The previous prime is 10391911. The next prime is 10391921. The reversal of 10391916 is 61919301.

10391916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10391911) and next prime (10391921).

It is a tau number, because it is divible by the number of its divisors (12).

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432985 + ... + 433008.

Almost surely, 2^10391916 is an apocalyptic number.

It is an amenable number.

10391916 is an abundant number, since it is smaller than the sum of its proper divisors (13855916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10391916 is a wasteful number, since it uses less digits than its factorization.

10391916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866000 (or 865998 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 10391916 is about 3223.6494846680. The cubic root of 10391916 is about 218.2220054131. Note that the first 3 decimals are identical.

The spelling of 10391916 in words is "ten million, three hundred ninety-one thousand, nine hundred sixteen".