6988606 has 4 divisors (see below), whose sum is σ = 10482912. Its totient is φ = 3494302.

The previous prime is 6988603. The next prime is 6988607. The reversal of 6988606 is 6068896.

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

It is a super-2 number, since 2×6988606² = 97681227646472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6988603) 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 as a sum of consecutive naturals, namely, 1747150 + ... + 1747153.

It is an arithmetic number, because the mean of its divisors is an integer number (2620728).

Almost surely, 2^6988606 is an apocalyptic number.

6988606 is a deficient number, since it is larger than the sum of its proper divisors (3494306).

6988606 is a wasteful number, since it uses less digits than its factorization.

6988606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3494305.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 6988606 is about 2643.5971705235. The cubic root of 6988606 is about 191.1892717322.

The spelling of 6988606 in words is "six million, nine hundred eighty-eight thousand, six hundred six".