13875379 has 10 divisors (see below), whose sum is σ = 16189780. Its totient is φ = 11891124.

The previous prime is 13875361. The next prime is 13875391. The reversal of 13875379 is 97357831.

It is not a de Polignac number, because 13875379 - 2⁹ = 13874867 is a prime.

It is a super-2 number, since 2×13875379² = 385052284787282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13875779) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 489 + ... + 5290.

It is an arithmetic number, because the mean of its divisors is an integer number (1618978).

Almost surely, 2^13875379 is an apocalyptic number.

13875379 is a deficient number, since it is larger than the sum of its proper divisors (2314401).

13875379 is an frugal number, since it uses more digits than its factorization.

13875379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5807 (or 5786 counting only the distinct ones).

The product of its digits is 158760, while the sum is 43.

The square root of 13875379 is about 3724.9669797194. The cubic root of 13875379 is about 240.2969645745.

The spelling of 13875379 in words is "thirteen million, eight hundred seventy-five thousand, three hundred seventy-nine".