6957993 has 8 divisors (see below), whose sum is σ = 10602688. Its totient is φ = 3975984.

The previous prime is 6957989. The next prime is 6957997. The reversal of 6957993 is 3997596.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6957989) and next prime (6957997).

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

It is not a de Polignac number, because 6957993 - 2² = 6957989 is a prime.

It is a Duffinian number.

6957993 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6957997) 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, 165646 + ... + 165687.

It is an arithmetic number, because the mean of its divisors is an integer number (1325336).

Almost surely, 2^6957993 is an apocalyptic number.

It is an amenable number.

6957993 is a deficient number, since it is larger than the sum of its proper divisors (3644695).

6957993 is a wasteful number, since it uses less digits than its factorization.

6957993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331343.

The product of its digits is 459270, while the sum is 48.

The square root of 6957993 is about 2637.8007885358. The cubic root of 6957993 is about 190.9097002867.

The spelling of 6957993 in words is "six million, nine hundred fifty-seven thousand, nine hundred ninety-three".