6989913 has 12 divisors (see below), whose sum is σ = 11539008. Its totient is φ = 3994200.

The previous prime is 6989869. The next prime is 6989921. The reversal of 6989913 is 3199896.

It is not a de Polignac number, because 6989913 - 2⁸ = 6989657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6989923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55413 + ... + 55538.

It is an arithmetic number, because the mean of its divisors is an integer number (961584).

Almost surely, 2^6989913 is an apocalyptic number.

6989913 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

6989913 is a deficient number, since it is larger than the sum of its proper divisors (4549095).

6989913 is a wasteful number, since it uses less digits than its factorization.

6989913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110964 (or 110961 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 6989913 is about 2643.8443600182. The cubic root of 6989913 is about 191.2011896456.

The spelling of 6989913 in words is "six million, nine hundred eighty-nine thousand, nine hundred thirteen".