6990993 has 12 divisors (see below), whose sum is σ = 10629840. Its totient is φ = 4415256.

The previous prime is 6990967. The next prime is 6991003. The reversal of 6990993 is 3990996.

It is not a de Polignac number, because 6990993 - 2¹⁴ = 6974609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6990913) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 20271 + ... + 20612.

It is an arithmetic number, because the mean of its divisors is an integer number (885820).

Almost surely, 2^6990993 is an apocalyptic number.

It is an amenable number.

6990993 is a deficient number, since it is larger than the sum of its proper divisors (3638847).

6990993 is a wasteful number, since it uses less digits than its factorization.

6990993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40908 (or 40905 counting only the distinct ones).

The product of its (nonzero) digits is 118098, while the sum is 45.

The square root of 6990993 is about 2644.0486001585. The cubic root of 6990993 is about 191.2110365326.

The spelling of 6990993 in words is "six million, nine hundred ninety thousand, nine hundred ninety-three".