13321869 has 16 divisors (see below), whose sum is σ = 20398080. Its totient is φ = 7648560.

The previous prime is 13321837. The next prime is 13321877. The reversal of 13321869 is 96812331.

13321869 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 13321869 - 2⁵ = 13321837 is a prime.

It is a super-2 number, since 2×13321869² = 354944387306322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9997 + ... + 11250.

It is an arithmetic number, because the mean of its divisors is an integer number (1274880).

Almost surely, 2^13321869 is an apocalyptic number.

13321869 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13321869 is a deficient number, since it is larger than the sum of its proper divisors (7076211).

13321869 is a wasteful number, since it uses less digits than its factorization.

13321869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21280.

The product of its digits is 7776, while the sum is 33.

The square root of 13321869 is about 3649.9135606203. The cubic root of 13321869 is about 237.0582384607.

The spelling of 13321869 in words is "thirteen million, three hundred twenty-one thousand, eight hundred sixty-nine".