10669391 has 4 divisors (see below), whose sum is σ = 10678800. Its totient is φ = 10659984.

The previous prime is 10669381. The next prime is 10669411. The reversal of 10669391 is 19396601.

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 is a cyclic number.

It is not a de Polignac number, because 10669391 - 2¹⁴ = 10653007 is a prime.

It is a super-2 number, since 2×10669391² = 227671808621762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10669381) 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, 2726 + ... + 5363.

It is an arithmetic number, because the mean of its divisors is an integer number (2669700).

Almost surely, 2^10669391 is an apocalyptic number.

10669391 is a deficient number, since it is larger than the sum of its proper divisors (9409).

10669391 is an equidigital number, since it uses as much as digits as its factorization.

10669391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9408.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 10669391 is about 3266.4033737431. The cubic root of 10669391 is about 220.1472223945.

The spelling of 10669391 in words is "ten million, six hundred sixty-nine thousand, three hundred ninety-one".