6981459 has 4 divisors (see below), whose sum is σ = 9308616. Its totient is φ = 4654304.

The previous prime is 6981449. The next prime is 6981463. The reversal of 6981459 is 9541896.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6981459 - 2²¹ = 4884307 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 6981459.

It is not an unprimeable number, because it can be changed into a prime (6981409) 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, 1163574 + ... + 1163579.

It is an arithmetic number, because the mean of its divisors is an integer number (2327154).

Almost surely, 2^6981459 is an apocalyptic number.

6981459 is a deficient number, since it is larger than the sum of its proper divisors (2327157).

6981459 is a wasteful number, since it uses less digits than its factorization.

6981459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327156.

The product of its digits is 77760, while the sum is 42.

The square root of 6981459 is about 2642.2450681192. The cubic root of 6981459 is about 191.1240753354.

The spelling of 6981459 in words is "six million, nine hundred eighty-one thousand, four hundred fifty-nine".