10808391 has 16 divisors (see below), whose sum is σ = 15873408. Its totient is φ = 6487200.

The previous prime is 10808389. The next prime is 10808423. The reversal of 10808391 is 19380801.

10808391 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10808391 - 2¹ = 10808389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10808381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2001 + ... + 5061.

It is an arithmetic number, because the mean of its divisors is an integer number (992088).

Almost surely, 2^10808391 is an apocalyptic number.

10808391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10808391 is a deficient number, since it is larger than the sum of its proper divisors (5065017).

10808391 is a wasteful number, since it uses less digits than its factorization.

10808391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3182.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 10808391 is about 3287.6117471502. The cubic root of 10808391 is about 221.0991208553.

The spelling of 10808391 in words is "ten million, eight hundred eight thousand, three hundred ninety-one".