7727923873 has 2 divisors, whose sum is σ = 7727923874. Its totient is φ = 7727923872.

The previous prime is 7727923823. The next prime is 7727923913. The reversal of 7727923873 is 3783297277.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7524348049 + 203575824 = 86743^2 + 14268^2 .

It is an emirp because it is prime and its reverse (3783297277) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7727923873 is a prime.

It is not a weakly prime, because it can be changed into another prime (7727923813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3863961936 + 3863961937.

It is an arithmetic number, because the mean of its divisors is an integer number (3863961937).

Almost surely, 2^7727923873 is an apocalyptic number.

It is an amenable number.

7727923873 is a deficient number, since it is larger than the sum of its proper divisors (1).

7727923873 is an equidigital number, since it uses as much as digits as its factorization.

7727923873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6223392, while the sum is 55.

The square root of 7727923873 is about 87908.6109149724. The cubic root of 7727923873 is about 1977.0649873606.

The spelling of 7727923873 in words is "seven billion, seven hundred twenty-seven million, nine hundred twenty-three thousand, eight hundred seventy-three".