2163693983 has 4 divisors (see below), whose sum is σ = 2360393448. Its totient is φ = 1966994520.

The previous prime is 2163693967. The next prime is 2163693997. The reversal of 2163693983 is 3893963612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2163693983 - 2⁴ = 2163693967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163693923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98349716 + ... + 98349737.

It is an arithmetic number, because the mean of its divisors is an integer number (590098362).

Almost surely, 2^2163693983 is an apocalyptic number.

2163693983 is a deficient number, since it is larger than the sum of its proper divisors (196699465).

2163693983 is a wasteful number, since it uses less digits than its factorization.

2163693983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196699464.

The product of its digits is 1259712, while the sum is 50.

The square root of 2163693983 is about 46515.5241075493. The cubic root of 2163693983 is about 1293.3972874118.

The spelling of 2163693983 in words is "two billion, one hundred sixty-three million, six hundred ninety-three thousand, nine hundred eighty-three".