13211669 has 8 divisors (see below), whose sum is σ = 14725440. Its totient is φ = 11779776.

The previous prime is 13211659. The next prime is 13211677. The reversal of 13211669 is 96611231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13211669 - 2¹² = 13207573 is a prime.

It is a super-2 number, since 2×13211669² = 349096395531122, 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 (13211659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20129 + ... + 20774.

It is an arithmetic number, because the mean of its divisors is an integer number (1840680).

Almost surely, 2^13211669 is an apocalyptic number.

13211669 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13211669 is a deficient number, since it is larger than the sum of its proper divisors (1513771).

13211669 is a wasteful number, since it uses less digits than its factorization.

13211669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40939.

The product of its digits is 1944, while the sum is 29.

The square root of 13211669 is about 3634.7859634372. The cubic root of 13211669 is about 236.4027702776.

The spelling of 13211669 in words is "thirteen million, two hundred eleven thousand, six hundred sixty-nine".