3789581 has 2 divisors, whose sum is σ = 3789582. Its totient is φ = 3789580.

The previous prime is 3789571. The next prime is 3789593. The reversal of 3789581 is 1859873.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3496900 + 292681 = 1870^2 + 541^2 .

It is a cyclic number.

It is not a de Polignac number, because 3789581 - 2¹⁴ = 3773197 is a prime.

It is a super-2 number, since 2×3789581² = 28721848311122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen 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 (3789571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1894790 + 1894791.

It is an arithmetic number, because the mean of its divisors is an integer number (1894791).

Almost surely, 2^3789581 is an apocalyptic number.

It is an amenable number.

3789581 is a deficient number, since it is larger than the sum of its proper divisors (1).

3789581 is an equidigital number, since it uses as much as digits as its factorization.

3789581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 41.

The square root of 3789581 is about 1946.6846174971. The cubic root of 3789581 is about 155.9063238826.

The spelling of 3789581 in words is "three million, seven hundred eighty-nine thousand, five hundred eighty-one".