1963812 has 24 divisors (see below), whose sum is σ = 4707136. Its totient is φ = 636768.

The previous prime is 1963811. The next prime is 1963813. The reversal of 1963812 is 2183691.

It is an interprime number because it is at equal distance from previous prime (1963811) and next prime (1963813).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1963812.

It is not an unprimeable number, because it can be changed into a prime (1963811) 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 in 7 ways as a sum of consecutive naturals, for example, 1768 + ... + 2655.

2^1963812 is an apocalyptic number.

1963812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1963812 is an abundant number, since it is smaller than the sum of its proper divisors (2743324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1963812 is a wasteful number, since it uses less digits than its factorization.

1963812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4467 (or 4465 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 1963812 is about 1401.3607672545. The cubic root of 1963812 is about 125.2275747597.

It can be divided in two parts, 1963 and 812, that added together give a triangular number (2775 = T₇₄).

The spelling of 1963812 in words is "one million, nine hundred sixty-three thousand, eight hundred twelve".