1060686409 has 4 divisors (see below), whose sum is σ = 1060792516. Its totient is φ = 1060580304.

The previous prime is 1060686379. The next prime is 1060686413. The reversal of 1060686409 is 9046860601.

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 can be written as a sum of positive squares in 2 ways, for example, as 643383225 + 417303184 = 25365^2 + 20428^2 .

It is a cyclic number.

It is not a de Polignac number, because 1060686409 - 2¹³ = 1060678217 is a prime.

It is a super-2 number, since 2×1060686409² = 2250111316474630562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1060686479) 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, 36294 + ... + 58639.

It is an arithmetic number, because the mean of its divisors is an integer number (265198129).

Almost surely, 2^1060686409 is an apocalyptic number.

It is an amenable number.

1060686409 is a deficient number, since it is larger than the sum of its proper divisors (106107).

1060686409 is an equidigital number, since it uses as much as digits as its factorization.

1060686409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106106.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 1060686409 is about 32568.1809286303. The cubic root of 1060686409 is about 1019.8328602850.

The spelling of 1060686409 in words is "one billion, sixty million, six hundred eighty-six thousand, four hundred nine".