10388993 has 2 divisors, whose sum is σ = 10388994. Its totient is φ = 10388992.

The previous prime is 10388957. The next prime is 10389013. The reversal of 10388993 is 39988301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9628609 + 760384 = 3103^2 + 872^2 .

It is a cyclic number.

It is not a de Polignac number, because 10388993 - 2¹² = 10384897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10388993.

It is not a weakly prime, because it can be changed into another prime (10388923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5194496 + 5194497.

It is an arithmetic number, because the mean of its divisors is an integer number (5194497).

Almost surely, 2^10388993 is an apocalyptic number.

It is an amenable number.

10388993 is a deficient number, since it is larger than the sum of its proper divisors (1).

10388993 is an equidigital number, since it uses as much as digits as its factorization.

10388993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 10388993 is about 3223.1960846340. The cubic root of 10388993 is about 218.2015432661.

The spelling of 10388993 in words is "ten million, three hundred eighty-eight thousand, nine hundred ninety-three".