10065691 has 4 divisors (see below), whose sum is σ = 10075000. Its totient is φ = 10056384.

The previous prime is 10065677. The next prime is 10065703. The reversal of 10065691 is 19656001.

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, and also an emirpimes, since its reverse is a distinct semiprime: 19656001 = 191 ⋅102911.

It is a cyclic number.

It is not a de Polignac number, because 10065691 - 2⁷ = 10065563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10065631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2781 + ... + 5278.

It is an arithmetic number, because the mean of its divisors is an integer number (2518750).

Almost surely, 2^10065691 is an apocalyptic number.

10065691 is a deficient number, since it is larger than the sum of its proper divisors (9309).

10065691 is an equidigital number, since it uses as much as digits as its factorization.

10065691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9308.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 10065691 is about 3172.6473173046. The cubic root of 10065691 is about 215.9141963154.

The spelling of 10065691 in words is "ten million, sixty-five thousand, six hundred ninety-one".