6914991 has 4 divisors (see below), whose sum is σ = 9219992. Its totient is φ = 4609992.

The previous prime is 6914989. The next prime is 6915011. The reversal of 6914991 is 1994196.

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

It is not a de Polignac number, because 6914991 - 2¹ = 6914989 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

6914991 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6914951) 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 3 ways as a sum of consecutive naturals, for example, 1152496 + ... + 1152501.

It is an arithmetic number, because the mean of its divisors is an integer number (2304998).

Almost surely, 2^6914991 is an apocalyptic number.

6914991 is a deficient number, since it is larger than the sum of its proper divisors (2305001).

6914991 is a wasteful number, since it uses less digits than its factorization.

6914991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2305000.

The product of its digits is 17496, while the sum is 39.

The square root of 6914991 is about 2629.6370471987. The cubic root of 6914991 is about 190.5155986428.

The spelling of 6914991 in words is "six million, nine hundred fourteen thousand, nine hundred ninety-one".