1963951 has 6 divisors (see below), whose sum is σ = 2158856. Its totient is φ = 1785300.

The previous prime is 1963921. The next prime is 1963981. The reversal of 1963951 is 1593691.

It is an interprime number because it is at equal distance from previous prime (1963921) and next prime (1963981).

It is not a de Polignac number, because 1963951 - 2¹¹ = 1961903 is a prime.

It is a Duffinian number.

1963951 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1963921) 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 5 ways as a sum of consecutive naturals, for example, 7995 + ... + 8236.

2^1963951 is an apocalyptic number.

1963951 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1963951 is a deficient number, since it is larger than the sum of its proper divisors (194905).

1963951 is a wasteful number, since it uses less digits than its factorization.

1963951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16253 (or 16242 counting only the distinct ones).

The product of its digits is 7290, while the sum is 34.

The square root of 1963951 is about 1401.4103610292. The cubic root of 1963951 is about 125.2305292554.

The spelling of 1963951 in words is "one million, nine hundred sixty-three thousand, nine hundred fifty-one".