7013881 has 4 divisors (see below), whose sum is σ = 8015872. Its totient is φ = 6011892.

The previous prime is 7013863. The next prime is 7013887. The reversal of 7013881 is 1883107.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1883107 = 17 ⋅110771.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7013881 is a prime.

It is a super-2 number, since 2×7013881² = 98389053364322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7013887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500985 + ... + 500998.

It is an arithmetic number, because the mean of its divisors is an integer number (2003968).

Almost surely, 2^7013881 is an apocalyptic number.

It is an amenable number.

7013881 is a deficient number, since it is larger than the sum of its proper divisors (1001991).

7013881 is a wasteful number, since it uses less digits than its factorization.

7013881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001990.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 7013881 is about 2648.3732742950. The cubic root of 7013881 is about 191.4194795404.

Adding to 7013881 its reverse (1883107), we get a palindrome (8896988).

The spelling of 7013881 in words is "seven million, thirteen thousand, eight hundred eighty-one".