6356993 has 12 divisors (see below), whose sum is σ = 6788628. Its totient is φ = 5950560.

The previous prime is 6356983. The next prime is 6357011. The reversal of 6356993 is 3996536.

It can be written as a sum of positive squares in 2 ways, for example, as 3301489 + 3055504 = 1817^2 + 1748^2 .

It is not a de Polignac number, because 6356993 - 2⁸ = 6356737 is a prime.

It is a super-2 number, since 2×6356993² = 80822720004098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6356993.

It is not an unprimeable number, because it can be changed into a prime (6356923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32171 + ... + 32367.

It is an arithmetic number, because the mean of its divisors is an integer number (565719).

It is a Proth number, since it is equal to 97 ⋅ 2¹⁶ + 1 and 97 < 2¹⁶.

Almost surely, 2^6356993 is an apocalyptic number.

It is an amenable number.

6356993 is a deficient number, since it is larger than the sum of its proper divisors (431635).

6356993 is a wasteful number, since it uses less digits than its factorization.

6356993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 281 counting only the distinct ones).

The product of its digits is 131220, while the sum is 41.

The square root of 6356993 is about 2521.3077955696. The cubic root of 6356993 is about 185.2467416195.

The spelling of 6356993 in words is "six million, three hundred fifty-six thousand, nine hundred ninety-three".