4001630761 has 2 divisors, whose sum is σ = 4001630762. Its totient is φ = 4001630760.

The previous prime is 4001630701. The next prime is 4001630803. The reversal of 4001630761 is 1670361004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3894384025 + 107246736 = 62405^2 + 10356^2 .

It is a cyclic number.

It is not a de Polignac number, because 4001630761 - 2⁹ = 4001630249 is a prime.

It is not a weakly prime, because it can be changed into another prime (4001630701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000815380 + 2000815381.

It is an arithmetic number, because the mean of its divisors is an integer number (2000815381).

Almost surely, 2^4001630761 is an apocalyptic number.

It is an amenable number.

4001630761 is a deficient number, since it is larger than the sum of its proper divisors (1).

4001630761 is an equidigital number, since it uses as much as digits as its factorization.

4001630761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 4001630761 is about 63258.4441873178. Note that the first 3 decimals coincide. The cubic root of 4001630761 is about 1587.6167453027.

Adding to 4001630761 its reverse (1670361004), we get a palindrome (5671991765).

The spelling of 4001630761 in words is "four billion, one million, six hundred thirty thousand, seven hundred sixty-one".