1963959 has 16 divisors (see below), whose sum is σ = 2808288. Its totient is φ = 1216512.

The previous prime is 1963921. The next prime is 1963981. The reversal of 1963959 is 9593691.

It is not a de Polignac number, because 1963959 - 2¹² = 1959863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1963959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1963999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4749 + ... + 5145.

It is an arithmetic number, because the mean of its divisors is an integer number (175518).

2^1963959 is an apocalyptic number.

1963959 is a deficient number, since it is larger than the sum of its proper divisors (844329).

1963959 is a wasteful number, since it uses less digits than its factorization.

1963959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514.

The product of its digits is 65610, while the sum is 42.

The square root of 1963959 is about 1401.4132152938. The cubic root of 1963959 is about 125.2306992941.

The spelling of 1963959 in words is "one million, nine hundred sixty-three thousand, nine hundred fifty-nine".