2187963 has 24 divisors (see below), whose sum is σ = 3341520. Its totient is φ = 1377600.

The previous prime is 2187961. The next prime is 2187971. The reversal of 2187963 is 3697812.

2187963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2187963 - 2¹ = 2187961 is a prime.

Its product of digits (18144) is a multiple of the sum of its prime divisors (216).

2187963 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2187961) 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 in 23 ways as a sum of consecutive naturals, for example, 21613 + ... + 21713.

It is an arithmetic number, because the mean of its divisors is an integer number (139230).

2^2187963 is an apocalyptic number.

2187963 is a deficient number, since it is larger than the sum of its proper divisors (1153557).

2187963 is a wasteful number, since it uses less digits than its factorization.

2187963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 216 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 2187963 is about 1479.1764600615. The cubic root of 2187963 is about 129.8215104707.

The spelling of 2187963 in words is "two million, one hundred eighty-seven thousand, nine hundred sixty-three".