6993081 has 16 divisors (see below), whose sum is σ = 10811520. Its totient is φ = 4458960.

The previous prime is 6993079. The next prime is 6993131. The reversal of 6993081 is 1803996.

It is not a de Polignac number, because 6993081 - 2¹ = 6993079 is a prime.

It is a super-2 number, since 2×6993081² = 97806363745122, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6993061) 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 15 ways as a sum of consecutive naturals, for example, 5010 + ... + 6251.

It is an arithmetic number, because the mean of its divisors is an integer number (675720).

Almost surely, 2^6993081 is an apocalyptic number.

It is an amenable number.

6993081 is a deficient number, since it is larger than the sum of its proper divisors (3818439).

6993081 is a wasteful number, since it uses less digits than its factorization.

6993081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11293 (or 11287 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 6993081 is about 2644.4434197010. The cubic root of 6993081 is about 191.2300709722.

The spelling of 6993081 in words is "six million, nine hundred ninety-three thousand, eighty-one".