103900393 has 2 divisors, whose sum is σ = 103900394. Its totient is φ = 103900392.

The previous prime is 103900387. The next prime is 103900399. The reversal of 103900393 is 393009301.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (103900387) and next prime (103900399).

It can be written as a sum of positive squares in only one way, i.e., 88510464 + 15389929 = 9408^2 + 3923^2 .

It is a cyclic number.

It is not a de Polignac number, because 103900393 - 2⁹ = 103899881 is a prime.

It is not a weakly prime, because it can be changed into another prime (103900399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51950196 + 51950197.

It is an arithmetic number, because the mean of its divisors is an integer number (51950197).

Almost surely, 2^103900393 is an apocalyptic number.

It is an amenable number.

103900393 is a deficient number, since it is larger than the sum of its proper divisors (1).

103900393 is an equidigital number, since it uses as much as digits as its factorization.

103900393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2187, while the sum is 28.

The square root of 103900393 is about 10193.1542223200. The cubic root of 103900393 is about 470.1167553607.

Adding to 103900393 its reverse (393009301), we get a palindrome (496909694).

The spelling of 103900393 in words is "one hundred three million, nine hundred thousand, three hundred ninety-three".