3564061421 has 2 divisors, whose sum is σ = 3564061422. Its totient is φ = 3564061420.

The previous prime is 3564061411. The next prime is 3564061429. The reversal of 3564061421 is 1241604653.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2005785796 + 1558275625 = 44786^2 + 39475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3564061421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3564061429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1782030710 + 1782030711.

It is an arithmetic number, because the mean of its divisors is an integer number (1782030711).

Almost surely, 2^3564061421 is an apocalyptic number.

It is an amenable number.

3564061421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3564061421 is an equidigital number, since it uses as much as digits as its factorization.

3564061421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 3564061421 is about 59699.7606444113. The cubic root of 3564061421 is about 1527.5017856462.

The spelling of 3564061421 in words is "three billion, five hundred sixty-four million, sixty-one thousand, four hundred twenty-one".