2321871977 has 2 divisors, whose sum is σ = 2321871978. Its totient is φ = 2321871976.

The previous prime is 2321871967. The next prime is 2321872009. The reversal of 2321871977 is 7791781232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1487182096 + 834689881 = 38564^2 + 28891^2 .

It is a cyclic number.

It is not a de Polignac number, because 2321871977 - 2¹² = 2321867881 is a prime.

It is not a weakly prime, because it can be changed into another prime (2321871967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160935988 + 1160935989.

It is an arithmetic number, because the mean of its divisors is an integer number (1160935989).

Almost surely, 2^2321871977 is an apocalyptic number.

It is an amenable number.

2321871977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321871977 is an equidigital number, since it uses as much as digits as its factorization.

2321871977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 47.

The square root of 2321871977 is about 48185.8068003432. The cubic root of 2321871977 is about 1324.1771517583.

The spelling of 2321871977 in words is "two billion, three hundred twenty-one million, eight hundred seventy-one thousand, nine hundred seventy-seven".