6956391 has 16 divisors (see below), whose sum is σ = 10088064. Its totient is φ = 4238304.

The previous prime is 6956387. The next prime is 6956399. The reversal of 6956391 is 1936596.

It is not a de Polignac number, because 6956391 - 2² = 6956387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6956399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3340 + ... + 5006.

It is an arithmetic number, because the mean of its divisors is an integer number (630504).

Almost surely, 2^6956391 is an apocalyptic number.

6956391 is a deficient number, since it is larger than the sum of its proper divisors (3131673).

6956391 is a wasteful number, since it uses less digits than its factorization.

6956391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790.

The product of its digits is 43740, while the sum is 39.

The square root of 6956391 is about 2637.4971090032. The cubic root of 6956391 is about 190.8950475549.

The spelling of 6956391 in words is "six million, nine hundred fifty-six thousand, three hundred ninety-one".