7944993 has 32 divisors (see below), whose sum is σ = 13598720. Its totient is φ = 4490640.

The previous prime is 7944991. The next prime is 7945031. The reversal of 7944993 is 3994497.

7944993 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7944993 - 2¹ = 7944991 is a prime.

It is a super-3 number, since 3×7944993³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (7944991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23838 + ... + 24168.

It is an arithmetic number, because the mean of its divisors is an integer number (424960).

Almost surely, 2^7944993 is an apocalyptic number.

It is an amenable number.

7944993 is a deficient number, since it is larger than the sum of its proper divisors (5653727).

7944993 is a wasteful number, since it uses less digits than its factorization.

7944993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 468 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 7944993 is about 2818.6863961782. The cubic root of 7944993 is about 199.5405536870.

The spelling of 7944993 in words is "seven million, nine hundred forty-four thousand, nine hundred ninety-three".