3728383261 has 2 divisors, whose sum is σ = 3728383262. Its totient is φ = 3728383260.

The previous prime is 3728383247. The next prime is 3728383279. The reversal of 3728383261 is 1623838273.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2289622500 + 1438760761 = 47850^2 + 37931^2 .

It is a cyclic number.

It is not a de Polignac number, because 3728383261 - 2⁵ = 3728383229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3728483261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1864191630 + 1864191631.

It is an arithmetic number, because the mean of its divisors is an integer number (1864191631).

Almost surely, 2^3728383261 is an apocalyptic number.

It is an amenable number.

3728383261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3728383261 is an equidigital number, since it uses as much as digits as its factorization.

3728383261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 43.

The square root of 3728383261 is about 61060.4885421006. The cubic root of 3728383261 is about 1550.6252435565.

The spelling of 3728383261 in words is "three billion, seven hundred twenty-eight million, three hundred eighty-three thousand, two hundred sixty-one".