3628075921 has 2 divisors, whose sum is σ = 3628075922. Its totient is φ = 3628075920.

The previous prime is 3628075907. The next prime is 3628075933. The reversal of 3628075921 is 1295708263.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2897130625 + 730945296 = 53825^2 + 27036^2 .

It is a cyclic number.

It is not a de Polignac number, because 3628075921 - 2³¹ = 1480592273 is a prime.

It is not a weakly prime, because it can be changed into another prime (3628075951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1814037960 + 1814037961.

It is an arithmetic number, because the mean of its divisors is an integer number (1814037961).

Almost surely, 2^3628075921 is an apocalyptic number.

It is an amenable number.

3628075921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3628075921 is an equidigital number, since it uses as much as digits as its factorization.

3628075921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 3628075921 is about 60233.5116110625. The cubic root of 3628075921 is about 1536.5927821383.

The spelling of 3628075921 in words is "three billion, six hundred twenty-eight million, seventy-five thousand, nine hundred twenty-one".