6988873 has 2 divisors, whose sum is σ = 6988874. Its totient is φ = 6988872.

The previous prime is 6988871. The next prime is 6988879. The reversal of 6988873 is 3788896.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6568969 + 419904 = 2563^2 + 648^2 .

It is a cyclic number.

It is not a de Polignac number, because 6988873 - 2¹ = 6988871 is a prime.

Together with 6988871, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6988871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3494436 + 3494437.

It is an arithmetic number, because the mean of its divisors is an integer number (3494437).

Almost surely, 2^6988873 is an apocalyptic number.

It is an amenable number.

6988873 is a deficient number, since it is larger than the sum of its proper divisors (1).

6988873 is an equidigital number, since it uses as much as digits as its factorization.

6988873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 49.

The square root of 6988873 is about 2643.6476694144. The cubic root of 6988873 is about 191.1917064994.

The spelling of 6988873 in words is "six million, nine hundred eighty-eight thousand, eight hundred seventy-three".