6949391 has 4 divisors (see below), whose sum is σ = 6958392. Its totient is φ = 6940392.

The previous prime is 6949361. The next prime is 6949399. The reversal of 6949391 is 1939496.

6949391 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6949391 - 2¹⁰ = 6948367 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6949399) 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, 3221 + ... + 4926.

It is an arithmetic number, because the mean of its divisors is an integer number (1739598).

Almost surely, 2^6949391 is an apocalyptic number.

6949391 is a deficient number, since it is larger than the sum of its proper divisors (9001).

6949391 is an equidigital number, since it uses as much as digits as its factorization.

6949391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9000.

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

The square root of 6949391 is about 2636.1697593289. The cubic root of 6949391 is about 190.8309954817.

The spelling of 6949391 in words is "six million, nine hundred forty-nine thousand, three hundred ninety-one".