103957993 has 2 divisors, whose sum is σ = 103957994. Its totient is φ = 103957992.

The previous prime is 103957981. The next prime is 103958027. The reversal of 103957993 is 399759301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69006249 + 34951744 = 8307^2 + 5912^2 .

It is a cyclic number.

It is not a de Polignac number, because 103957993 - 2²¹ = 101860841 is a prime.

It is not a weakly prime, because it can be changed into another prime (103957943) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51978996 + 51978997.

It is an arithmetic number, because the mean of its divisors is an integer number (51978997).

Almost surely, 2^103957993 is an apocalyptic number.

It is an amenable number.

103957993 is a deficient number, since it is larger than the sum of its proper divisors (1).

103957993 is an equidigital number, since it uses as much as digits as its factorization.

103957993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 229635, while the sum is 46.

The square root of 103957993 is about 10195.9792565501. The cubic root of 103957993 is about 470.2036133020.

The spelling of 103957993 in words is "one hundred three million, nine hundred fifty-seven thousand, nine hundred ninety-three".