1973889023 has 8 divisors (see below), whose sum is σ = 2116457280. Its totient is φ = 1834260480.

The previous prime is 1973889019. The next prime is 1973889079. The reversal of 1973889023 is 3209883791.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1973889023 - 2² = 1973889019 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 (1973889223) 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, 733538 + ... + 736223.

It is an arithmetic number, because the mean of its divisors is an integer number (264557160).

Almost surely, 2^1973889023 is an apocalyptic number.

1973889023 is a deficient number, since it is larger than the sum of its proper divisors (142568257).

1973889023 is a wasteful number, since it uses less digits than its factorization.

1973889023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469857.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 1973889023 is about 44428.4708604741. The cubic root of 1973889023 is about 1254.4140528030.

The spelling of 1973889023 in words is "one billion, nine hundred seventy-three million, eight hundred eighty-nine thousand, twenty-three".