6994991 has 8 divisors (see below), whose sum is σ = 7185024. Its totient is φ = 6807640.

The previous prime is 6994987. The next prime is 6994997. The reversal of 6994991 is 1994996.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6994991 - 2² = 6994987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6994997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5300 + ... + 6486.

It is an arithmetic number, because the mean of its divisors is an integer number (898128).

Almost surely, 2^6994991 is an apocalyptic number.

6994991 is a deficient number, since it is larger than the sum of its proper divisors (190033).

6994991 is a wasteful number, since it uses less digits than its factorization.

6994991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341.

The product of its digits is 157464, while the sum is 47.

The square root of 6994991 is about 2644.8045296392. The cubic root of 6994991 is about 191.2474794262.

The spelling of 6994991 in words is "six million, nine hundred ninety-four thousand, nine hundred ninety-one".