13988383 has 4 divisors (see below), whose sum is σ = 14112288. Its totient is φ = 13864480.

The previous prime is 13988341. The next prime is 13988413. The reversal of 13988383 is 38388931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38388931 = 7 ⋅5484133.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13988383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13988683) 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, 61783 + ... + 62008.

It is an arithmetic number, because the mean of its divisors is an integer number (3528072).

Almost surely, 2^13988383 is an apocalyptic number.

13988383 is a deficient number, since it is larger than the sum of its proper divisors (123905).

13988383 is a wasteful number, since it uses less digits than its factorization.

13988383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123904.

The product of its digits is 124416, while the sum is 43.

The square root of 13988383 is about 3740.1046776795. The cubic root of 13988383 is about 240.9475445829.

The spelling of 13988383 in words is "thirteen million, nine hundred eighty-eight thousand, three hundred eighty-three".