10681605 has 32 divisors (see below), whose sum is σ = 20718720. Its totient is φ = 5178240.

The previous prime is 10681603. The next prime is 10681621. The reversal of 10681605 is 50618601.

10681605 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 10681605 - 2¹ = 10681603 is a prime.

It is a super-2 number, since 2×10681605² = 228193370752050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10681603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2112 + ... + 5081.

It is an arithmetic number, because the mean of its divisors is an integer number (647460).

Almost surely, 2^10681605 is an apocalyptic number.

10681605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10681605 is a deficient number, since it is larger than the sum of its proper divisors (10037115).

10681605 is a wasteful number, since it uses less digits than its factorization.

10681605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7218 (or 7212 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 10681605 is about 3268.2724794607. The cubic root of 10681605 is about 220.2311963463.

The spelling of 10681605 in words is "ten million, six hundred eighty-one thousand, six hundred five".