1984257163 has 8 divisors (see below), whose sum is σ = 2268523232. Its totient is φ = 1700191296.

The previous prime is 1984257133. The next prime is 1984257203. The reversal of 1984257163 is 3617524891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1984257163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1984257103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28170 + ... + 69007.

It is an arithmetic number, because the mean of its divisors is an integer number (283565404).

Almost surely, 2^1984257163 is an apocalyptic number.

1984257163 is a deficient number, since it is larger than the sum of its proper divisors (284266069).

1984257163 is an equidigital number, since it uses as much as digits as its factorization.

1984257163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100101.

The product of its digits is 362880, while the sum is 46.

The square root of 1984257163 is about 44545.0015489954. The cubic root of 1984257163 is about 1256.6065493955.

The spelling of 1984257163 in words is "one billion, nine hundred eighty-four million, two hundred fifty-seven thousand, one hundred sixty-three".