1973910713 has 4 divisors (see below), whose sum is σ = 1973999760. Its totient is φ = 1973821668.

The previous prime is 1973910707. The next prime is 1973910733. The reversal of 1973910713 is 3170193791.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3170193791 = 43 ⋅73725437.

It is a cyclic number.

It is not a de Polignac number, because 1973910713 - 2⁶ = 1973910649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1973910733) 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, 17918 + ... + 65336.

It is an arithmetic number, because the mean of its divisors is an integer number (493499940).

Almost surely, 2^1973910713 is an apocalyptic number.

It is an amenable number.

1973910713 is a deficient number, since it is larger than the sum of its proper divisors (89047).

1973910713 is an equidigital number, since it uses as much as digits as its factorization.

1973910713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89046.

The product of its (nonzero) digits is 35721, while the sum is 41.

The square root of 1973910713 is about 44428.7149600346. The cubic root of 1973910713 is about 1254.4186474789.

The spelling of 1973910713 in words is "one billion, nine hundred seventy-three million, nine hundred ten thousand, seven hundred thirteen".