6988623 has 8 divisors (see below), whose sum is σ = 9639600. Its totient is φ = 4498368.

The previous prime is 6988621. The next prime is 6988627. The reversal of 6988623 is 3268896.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6988623 - 2¹ = 6988621 is a prime.

It is a super-2 number, since 2×6988623² = 97681702872258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6988621) 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 7 ways as a sum of consecutive naturals, for example, 40078 + ... + 40251.

It is an arithmetic number, because the mean of its divisors is an integer number (1204950).

Almost surely, 2^6988623 is an apocalyptic number.

6988623 is a deficient number, since it is larger than the sum of its proper divisors (2650977).

6988623 is a wasteful number, since it uses less digits than its factorization.

6988623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80361.

The product of its digits is 124416, while the sum is 42.

The square root of 6988623 is about 2643.6003858375. The cubic root of 6988623 is about 191.1894267567.

The spelling of 6988623 in words is "six million, nine hundred eighty-eight thousand, six hundred twenty-three".