4623729977 has 2 divisors, whose sum is σ = 4623729978. Its totient is φ = 4623729976.

The previous prime is 4623729959. The next prime is 4623730039. The reversal of 4623729977 is 7799273264.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3194058256 + 1429671721 = 56516^2 + 37811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4623729977 is a prime.

It is not a weakly prime, because it can be changed into another prime (4623729907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2311864988 + 2311864989.

It is an arithmetic number, because the mean of its divisors is an integer number (2311864989).

Almost surely, 2^4623729977 is an apocalyptic number.

It is an amenable number.

4623729977 is a deficient number, since it is larger than the sum of its proper divisors (1).

4623729977 is an equidigital number, since it uses as much as digits as its factorization.

4623729977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8001504, while the sum is 56.

The square root of 4623729977 is about 67998.0145077781. The cubic root of 4623729977 is about 1665.9584074150.

The spelling of 4623729977 in words is "four billion, six hundred twenty-three million, seven hundred twenty-nine thousand, nine hundred seventy-seven".