1963457 has 2 divisors, whose sum is σ = 1963458. Its totient is φ = 1963456.

The previous prime is 1963433. The next prime is 1963459. The reversal of 1963457 is 7543691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1948816 + 14641 = 1396^2 + 121^2 .

It is a cyclic number.

It is not a de Polignac number, because 1963457 - 2⁸ = 1963201 is a prime.

Together with 1963459, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 9 + 6⁵ + 3⁷ + 4² + 5⁹ + 7³ .

It is not a weakly prime, because it can be changed into another prime (1963459) 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, 981728 + 981729.

It is an arithmetic number, because the mean of its divisors is an integer number (981729).

2^1963457 is an apocalyptic number.

It is an amenable number.

1963457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1963457 is an equidigital number, since it uses as much as digits as its factorization.

1963457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 35.

The square root of 1963457 is about 1401.2340989285. The cubic root of 1963457 is about 125.2200284725.

It can be divided in two parts, 19634 and 57, that added together give a palindrome (19691).

The spelling of 1963457 in words is "one million, nine hundred sixty-three thousand, four hundred fifty-seven".