7973312147 has 2 divisors, whose sum is σ = 7973312148. Its totient is φ = 7973312146.

The previous prime is 7973312143. The next prime is 7973312167. The reversal of 7973312147 is 7412133797.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7973312147 - 2² = 7973312143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7973312098 and 7973312107.

It is not a weakly prime, because it can be changed into another prime (7973312143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3986656073 + 3986656074.

It is an arithmetic number, because the mean of its divisors is an integer number (3986656074).

Almost surely, 2^7973312147 is an apocalyptic number.

7973312147 is a deficient number, since it is larger than the sum of its proper divisors (1).

7973312147 is an equidigital number, since it uses as much as digits as its factorization.

7973312147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 222264, while the sum is 44.

The square root of 7973312147 is about 89293.4048348477. The cubic root of 7973312147 is about 1997.7735345956.

The spelling of 7973312147 in words is "seven billion, nine hundred seventy-three million, three hundred twelve thousand, one hundred forty-seven".