10903993 has 2 divisors, whose sum is σ = 10903994. Its totient is φ = 10903992.

The previous prime is 10903979. The next prime is 10904039. The reversal of 10903993 is 39930901.

It is a happy number.

10903993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8479744 + 2424249 = 2912^2 + 1557^2 .

It is an emirp because it is prime and its reverse (39930901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10903993 - 2⁹ = 10903481 is a prime.

It is not a weakly prime, because it can be changed into another prime (10903903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5451996 + 5451997.

It is an arithmetic number, because the mean of its divisors is an integer number (5451997).

Almost surely, 2^10903993 is an apocalyptic number.

It is an amenable number.

10903993 is a deficient number, since it is larger than the sum of its proper divisors (1).

10903993 is an equidigital number, since it uses as much as digits as its factorization.

10903993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6561, while the sum is 34.

The square root of 10903993 is about 3302.1194708853. The cubic root of 10903993 is about 221.7490942878.

The spelling of 10903993 in words is "ten million, nine hundred three thousand, nine hundred ninety-three".