10681819 has 4 divisors (see below), whose sum is σ = 11244040. Its totient is φ = 10119600.

The previous prime is 10681817. The next prime is 10681829. The reversal of 10681819 is 91818601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10681819 - 2¹ = 10681817 is a prime.

It is a super-2 number, since 2×10681819² = 228202514297522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10681817) 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, 281082 + ... + 281119.

It is an arithmetic number, because the mean of its divisors is an integer number (2811010).

Almost surely, 2^10681819 is an apocalyptic number.

10681819 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

10681819 is a deficient number, since it is larger than the sum of its proper divisors (562221).

10681819 is an equidigital number, since it uses as much as digits as its factorization.

10681819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562220.

The product of its (nonzero) digits is 3456, while the sum is 34.

The square root of 10681819 is about 3268.3052183050. The cubic root of 10681819 is about 220.2326670729.

The spelling of 10681819 in words is "ten million, six hundred eighty-one thousand, eight hundred nineteen".