6307993 has 4 divisors (see below), whose sum is σ = 6525540. Its totient is φ = 6090448.

The previous prime is 6307979. The next prime is 6308017. The reversal of 6307993 is 3997036.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5253264 + 1054729 = 2292^2 + 1027^2 .

It is a cyclic number.

It is not a de Polignac number, because 6307993 - 2²¹ = 4210841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6307193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108730 + ... + 108787.

It is an arithmetic number, because the mean of its divisors is an integer number (1631385).

Almost surely, 2^6307993 is an apocalyptic number.

It is an amenable number.

6307993 is a deficient number, since it is larger than the sum of its proper divisors (217547).

6307993 is a wasteful number, since it uses less digits than its factorization.

6307993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217546.

The product of its (nonzero) digits is 30618, while the sum is 37.

The square root of 6307993 is about 2511.5718186028. The cubic root of 6307993 is about 184.7695499169.

The spelling of 6307993 in words is "six million, three hundred seven thousand, nine hundred ninety-three".