4111993 has 2 divisors, whose sum is σ = 4111994. Its totient is φ = 4111992.

The previous prime is 4111973. The next prime is 4112021. The reversal of 4111993 is 3991114.

It is a happy number.

It is an a-pointer prime, because the next prime (4112021) can be obtained adding 4111993 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3250809 + 861184 = 1803^2 + 928^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4111993 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4111973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2055996 + 2055997.

It is an arithmetic number, because the mean of its divisors is an integer number (2055997).

Almost surely, 2^4111993 is an apocalyptic number.

It is an amenable number.

4111993 is a deficient number, since it is larger than the sum of its proper divisors (1).

4111993 is an equidigital number, since it uses as much as digits as its factorization.

4111993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 28.

The square root of 4111993 is about 2027.8049708983. The cubic root of 4111993 is about 160.2079717438.

The spelling of 4111993 in words is "four million, one hundred eleven thousand, nine hundred ninety-three".