1983970223 has 4 divisors (see below), whose sum is σ = 1985989488. Its totient is φ = 1981950960.

The previous prime is 1983970217. The next prime is 1983970259. The reversal of 1983970223 is 3220793891.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1983970223 is a prime.

It is a super-2 number, since 2×1983970223² = 7872275691501339458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983970273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008158 + ... + 1010123.

It is an arithmetic number, because the mean of its divisors is an integer number (496497372).

Almost surely, 2^1983970223 is an apocalyptic number.

1983970223 is a deficient number, since it is larger than the sum of its proper divisors (2019265).

1983970223 is an equidigital number, since it uses as much as digits as its factorization.

1983970223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019264.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 1983970223 is about 44541.7806446936. The cubic root of 1983970223 is about 1256.5459745749.

The spelling of 1983970223 in words is "one billion, nine hundred eighty-three million, nine hundred seventy thousand, two hundred twenty-three".