10919997 has 24 divisors (see below), whose sum is σ = 17454528. Its totient is φ = 6523200.

The previous prime is 10919989. The next prime is 10919999. The reversal of 10919997 is 79991901.

10919997 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10919997 - 2³ = 10919989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10919999) 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 in 23 ways as a sum of consecutive naturals, for example, 6472 + ... + 7982.

It is an arithmetic number, because the mean of its divisors is an integer number (727272).

Almost surely, 2^10919997 is an apocalyptic number.

It is an amenable number.

10919997 is a deficient number, since it is larger than the sum of its proper divisors (6534531).

10919997 is a wasteful number, since it uses less digits than its factorization.

10919997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601 (or 1598 counting only the distinct ones).

The product of its (nonzero) digits is 45927, while the sum is 45.

The square root of 10919997 is about 3304.5418744510. The cubic root of 10919997 is about 221.8575297228.

The spelling of 10919997 in words is "ten million, nine hundred nineteen thousand, nine hundred ninety-seven".