6998722 has 4 divisors (see below), whose sum is σ = 10498086. Its totient is φ = 3499360.

The previous prime is 6998711. The next prime is 6998737. The reversal of 6998722 is 2278996.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 6548481 + 450241 = 2559^2 + 671^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1749679 + ... + 1749682.

Almost surely, 2^6998722 is an apocalyptic number.

6998722 is a deficient number, since it is larger than the sum of its proper divisors (3499364).

6998722 is a wasteful number, since it uses less digits than its factorization.

6998722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499363.

The product of its digits is 108864, while the sum is 43.

The square root of 6998722 is about 2645.5097807417. The cubic root of 6998722 is about 191.2814760161.

The spelling of 6998722 in words is "six million, nine hundred ninety-eight thousand, seven hundred twenty-two".