10781930 has 16 divisors (see below), whose sum is σ = 20429280. Its totient is φ = 4085712.

The previous prime is 10781929. The next prime is 10781957. The reversal of 10781930 is 3918701.

It is a junction number, because it is equal to n+sod(n) for n = 10781893 and 10781902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28184 + ... + 28563.

It is an arithmetic number, because the mean of its divisors is an integer number (1276830).

Almost surely, 2^10781930 is an apocalyptic number.

10781930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10781930 is a deficient number, since it is larger than the sum of its proper divisors (9647350).

10781930 is a wasteful number, since it uses less digits than its factorization.

10781930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56773.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 10781930 is about 3283.5849311385. The cubic root of 10781930 is about 220.9185424904.

It can be divided in two parts, 10781 and 930, that added together give a palindrome (11711).

The spelling of 10781930 in words is "ten million, seven hundred eighty-one thousand, nine hundred thirty".