4118993 has 2 divisors, whose sum is σ = 4118994. Its totient is φ = 4118992.

The previous prime is 4118977. The next prime is 4119007. The reversal of 4118993 is 3998114.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3323329 + 795664 = 1823^2 + 892^2 .

It is a cyclic number.

It is not a de Polignac number, because 4118993 - 2⁴ = 4118977 is a prime.

It is a super-2 number, since 2×4118993² = 33932206668098, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4118693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2059496 + 2059497.

It is an arithmetic number, because the mean of its divisors is an integer number (2059497).

Almost surely, 2^4118993 is an apocalyptic number.

It is an amenable number.

4118993 is a deficient number, since it is larger than the sum of its proper divisors (1).

4118993 is an equidigital number, since it uses as much as digits as its factorization.

4118993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 35.

The square root of 4118993 is about 2029.5302412135. The cubic root of 4118993 is about 160.2988295540.

The spelling of 4118993 in words is "four million, one hundred eighteen thousand, nine hundred ninety-three".