6994391 has 4 divisors (see below), whose sum is σ = 7113000. Its totient is φ = 6875784.

The previous prime is 6994387. The next prime is 6994409. The reversal of 6994391 is 1934996.

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

It is a cyclic number.

It is not a de Polignac number, because 6994391 - 2² = 6994387 is a prime.

It is a d-powerful number, because it can be written as 6⁸ + 9² + 9⁶ + 4⁴ + 3³ + 9⁷ + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6994301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59216 + ... + 59333.

It is an arithmetic number, because the mean of its divisors is an integer number (1778250).

Almost surely, 2^6994391 is an apocalyptic number.

6994391 is a deficient number, since it is larger than the sum of its proper divisors (118609).

6994391 is a wasteful number, since it uses less digits than its factorization.

6994391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118608.

The product of its digits is 52488, while the sum is 41.

The square root of 6994391 is about 2644.6910972739. The cubic root of 6994391 is about 191.2420111434.

The spelling of 6994391 in words is "six million, nine hundred ninety-four thousand, three hundred ninety-one".