3530381 has 2 divisors, whose sum is σ = 3530382. Its totient is φ = 3530380.

The previous prime is 3530369. The next prime is 3530389. The reversal of 3530381 is 1830353.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2353156 + 1177225 = 1534^2 + 1085^2 .

It is a cyclic number.

It is not a de Polignac number, because 3530381 - 2¹⁴ = 3513997 is a prime.

It is a super-2 number, since 2×3530381² = 24927180010322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3530389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1765190 + 1765191.

It is an arithmetic number, because the mean of its divisors is an integer number (1765191).

Almost surely, 2^3530381 is an apocalyptic number.

It is an amenable number.

3530381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3530381 is an equidigital number, since it uses as much as digits as its factorization.

3530381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 3530381 is about 1878.9308129891. The cubic root of 3530381 is about 152.2674912475.

The spelling of 3530381 in words is "three million, five hundred thirty thousand, three hundred eighty-one".