1983934655 has 16 divisors (see below), whose sum is σ = 2420446944. Its totient is φ = 1560746880.

The previous prime is 1983934643. The next prime is 1983934669. The reversal of 1983934655 is 5564393891.

It is not a de Polignac number, because 1983934655 - 2⁴ = 1983934639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1983934597 and 1983934606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200525 + ... + 210185.

It is an arithmetic number, because the mean of its divisors is an integer number (151277934).

Almost surely, 2^1983934655 is an apocalyptic number.

1983934655 is a deficient number, since it is larger than the sum of its proper divisors (436512289).

1983934655 is an equidigital number, since it uses as much as digits as its factorization.

1983934655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10346.

The product of its digits is 3499200, while the sum is 53.

The square root of 1983934655 is about 44541.3813773215. The cubic root of 1983934655 is about 1256.5384655417.

The spelling of 1983934655 in words is "one billion, nine hundred eighty-three million, nine hundred thirty-four thousand, six hundred fifty-five".