14677981 has 4 divisors (see below), whose sum is σ = 14695072. Its totient is φ = 14660892.

The previous prime is 14677967. The next prime is 14678009. The reversal of 14677981 is 18977641.

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: 18977641 = 491 ⋅38651.

It is a cyclic number.

It is not a de Polignac number, because 14677981 - 2¹¹ = 14675933 is a prime.

It is a super-2 number, since 2×14677981² = 430886252472722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14677931) 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, 7185 + ... + 8998.

It is an arithmetic number, because the mean of its divisors is an integer number (3673768).

Almost surely, 2^14677981 is an apocalyptic number.

It is an amenable number.

14677981 is a deficient number, since it is larger than the sum of its proper divisors (17091).

14677981 is an equidigital number, since it uses as much as digits as its factorization.

14677981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17090.

The product of its digits is 84672, while the sum is 43.

The square root of 14677981 is about 3831.1853257184. The cubic root of 14677981 is about 244.8436097585.

The spelling of 14677981 in words is "fourteen million, six hundred seventy-seven thousand, nine hundred eighty-one".