1973022973 has 4 divisors (see below), whose sum is σ = 1974395520. Its totient is φ = 1971650428.

The previous prime is 1973022967. The next prime is 1973022977. The reversal of 1973022973 is 3792203791.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3792203791 = 71 ⋅53411321.

It is a cyclic number.

It is not a de Polignac number, because 1973022973 - 2²⁵ = 1939468541 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 (1973022977) 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, 684115 + ... + 686992.

It is an arithmetic number, because the mean of its divisors is an integer number (493598880).

Almost surely, 2^1973022973 is an apocalyptic number.

It is an amenable number.

1973022973 is a deficient number, since it is larger than the sum of its proper divisors (1372547).

1973022973 is a wasteful number, since it uses less digits than its factorization.

1973022973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372546.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 1973022973 is about 44418.7232256849. The cubic root of 1973022973 is about 1254.2305665986.

The spelling of 1973022973 in words is "one billion, nine hundred seventy-three million, twenty-two thousand, nine hundred seventy-three".