7809973073 has 4 divisors (see below), whose sum is σ = 8925683520. Its totient is φ = 6694262628.

The previous prime is 7809973057. The next prime is 7809973117. The reversal of 7809973073 is 3703799087.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 7809973073 - 2⁴ = 7809973057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7809973573) 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, 557855213 + ... + 557855226.

It is an arithmetic number, because the mean of its divisors is an integer number (2231420880).

Almost surely, 2^7809973073 is an apocalyptic number.

It is an amenable number.

7809973073 is a deficient number, since it is larger than the sum of its proper divisors (1115710447).

7809973073 is a wasteful number, since it uses less digits than its factorization.

7809973073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115710446.

The product of its (nonzero) digits is 2000376, while the sum is 53.

The square root of 7809973073 is about 88374.0520345197. The cubic root of 7809973073 is about 1984.0373587400.

The spelling of 7809973073 in words is "seven billion, eight hundred nine million, nine hundred seventy-three thousand, seventy-three".