10681409 has 4 divisors (see below), whose sum is σ = 10785216. Its totient is φ = 10577604.

The previous prime is 10681403. The next prime is 10681417. The reversal of 10681409 is 90418601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10681409 - 2⁴ = 10681393 is a prime.

It is a super-2 number, since 2×10681409² = 228184996450562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10681403) 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 3 ways as a sum of consecutive naturals, for example, 51749 + ... + 51954.

It is an arithmetic number, because the mean of its divisors is an integer number (2696304).

Almost surely, 2^10681409 is an apocalyptic number.

It is an amenable number.

10681409 is a deficient number, since it is larger than the sum of its proper divisors (103807).

10681409 is a wasteful number, since it uses less digits than its factorization.

10681409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103806.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 10681409 is about 3268.2424940631. The cubic root of 10681409 is about 220.2298493085.

The spelling of 10681409 in words is "ten million, six hundred eighty-one thousand, four hundred nine".