1957903 has 2 divisors, whose sum is σ = 1957904. Its totient is φ = 1957902.

The previous prime is 1957871. The next prime is 1957909. The reversal of 1957903 is 3097591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1957903 - 2⁵ = 1957871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1957909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978951 + 978952.

It is an arithmetic number, because the mean of its divisors is an integer number (978952).

2^1957903 is an apocalyptic number.

1957903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1957903 is an equidigital number, since it uses as much as digits as its factorization.

1957903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 1957903 is about 1399.2508710021. The cubic root of 1957903 is about 125.1018476606.

The spelling of 1957903 in words is "one million, nine hundred fifty-seven thousand, nine hundred three".