6997940 has 24 divisors (see below), whose sum is σ = 15171072. Its totient is φ = 2708640.

The previous prime is 6997937. The next prime is 6997967. The reversal of 6997940 is 497996.

It is a junction number, because it is equal to n+sod(n) for n = 6997891 and 6997900.

It is a congruent number.

It is an unprimeable number.

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, 5024 + ... + 6263.

It is an arithmetic number, because the mean of its divisors is an integer number (632128).

Almost surely, 2^6997940 is an apocalyptic number.

It is an amenable number.

6997940 is an abundant number, since it is smaller than the sum of its proper divisors (8173132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6997940 is a wasteful number, since it uses less digits than its factorization.

6997940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11327 (or 11325 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 6997940 is about 2645.3619790116. The cubic root of 6997940 is about 191.2743514922.

The spelling of 6997940 in words is "six million, nine hundred ninety-seven thousand, nine hundred forty".