3578609381 has 2 divisors, whose sum is σ = 3578609382. Its totient is φ = 3578609380.

The previous prime is 3578609369. The next prime is 3578609383. The reversal of 3578609381 is 1839068753.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3553948225 + 24661156 = 59615^2 + 4966^2 .

It is a cyclic number.

It is not a de Polignac number, because 3578609381 - 2¹⁸ = 3578347237 is a prime.

It is a super-2 number, since 2×3578609381² = 25612890203562406322, which contains 22 as substring.

Together with 3578609383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3578609383) 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, 1789304690 + 1789304691.

It is an arithmetic number, because the mean of its divisors is an integer number (1789304691).

Almost surely, 2^3578609381 is an apocalyptic number.

It is an amenable number.

3578609381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3578609381 is an equidigital number, since it uses as much as digits as its factorization.

3578609381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 3578609381 is about 59821.4792612152. The cubic root of 3578609381 is about 1529.5773080136.

The spelling of 3578609381 in words is "three billion, five hundred seventy-eight million, six hundred nine thousand, three hundred eighty-one".