10781923 has 4 divisors (see below), whose sum is σ = 10792648. Its totient is φ = 10771200.

The previous prime is 10781891. The next prime is 10781929. The reversal of 10781923 is 32918701.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10781923 - 2⁵ = 10781891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10781929) 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, 3678 + ... + 5923.

It is an arithmetic number, because the mean of its divisors is an integer number (2698162).

Almost surely, 2^10781923 is an apocalyptic number.

10781923 is a deficient number, since it is larger than the sum of its proper divisors (10725).

10781923 is an equidigital number, since it uses as much as digits as its factorization.

10781923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10724.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 10781923 is about 3283.5838652302. The cubic root of 10781923 is about 220.9184946811.

The spelling of 10781923 in words is "ten million, seven hundred eighty-one thousand, nine hundred twenty-three".