4735623721 has 2 divisors, whose sum is σ = 4735623722. Its totient is φ = 4735623720.

The previous prime is 4735623677. The next prime is 4735623733. The reversal of 4735623721 is 1273265374.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4437025321 + 298598400 = 66611^2 + 17280^2 .

It is a cyclic number.

It is not a de Polignac number, because 4735623721 - 2¹⁵ = 4735590953 is a prime.

It is a super-2 number, since 2×4735623721² = 44852264053795771682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4735323721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2367811860 + 2367811861.

It is an arithmetic number, because the mean of its divisors is an integer number (2367811861).

Almost surely, 2^4735623721 is an apocalyptic number.

It is an amenable number.

4735623721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4735623721 is an equidigital number, since it uses as much as digits as its factorization.

4735623721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 40.

The square root of 4735623721 is about 68815.8682354586. The cubic root of 4735623721 is about 1679.2901055188.

The spelling of 4735623721 in words is "four billion, seven hundred thirty-five million, six hundred twenty-three thousand, seven hundred twenty-one".