3548381 has 2 divisors, whose sum is σ = 3548382. Its totient is φ = 3548380.

The previous prime is 3548339. The next prime is 3548401. The reversal of 3548381 is 1838453.

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., 2859481 + 688900 = 1691^2 + 830^2 .

It is an emirp because it is prime and its reverse (1838453) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3548381 is a prime.

It is a super-2 number, since 2×3548381² = 25182015442322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3548081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1774190 + 1774191.

It is an arithmetic number, because the mean of its divisors is an integer number (1774191).

Almost surely, 2^3548381 is an apocalyptic number.

It is an amenable number.

3548381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3548381 is an equidigital number, since it uses as much as digits as its factorization.

3548381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 32.

The square root of 3548381 is about 1883.7146811553. The cubic root of 3548381 is about 152.5258363464.

The spelling of 3548381 in words is "three million, five hundred forty-eight thousand, three hundred eighty-one".