13911377 has 4 divisors (see below), whose sum is σ = 13951140. Its totient is φ = 13871616.

The previous prime is 13911353. The next prime is 13911383. The reversal of 13911377 is 77311931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77311931 = 19 ⋅4069049.

It can be written as a sum of positive squares in 2 ways, for example, as 6599761 + 7311616 = 2569^2 + 2704^2 .

It is a cyclic number.

It is not a de Polignac number, because 13911377 - 2¹⁰ = 13910353 is a prime.

It is a super-2 number, since 2×13911377² = 387052820072258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13911307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19352 + ... + 20057.

It is an arithmetic number, because the mean of its divisors is an integer number (3487785).

Almost surely, 2^13911377 is an apocalyptic number.

It is an amenable number.

13911377 is a deficient number, since it is larger than the sum of its proper divisors (39763).

13911377 is an equidigital number, since it uses as much as digits as its factorization.

13911377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39762.

The product of its digits is 3969, while the sum is 32.

The square root of 13911377 is about 3729.7958389167. The cubic root of 13911377 is about 240.5045923026.

It can be divided in two parts, 139113 and 77, that multiplied together give a palindrome (10711701).

The spelling of 13911377 in words is "thirteen million, nine hundred eleven thousand, three hundred seventy-seven".