4348781 has 2 divisors, whose sum is σ = 4348782. Its totient is φ = 4348780.

The previous prime is 4348759. The next prime is 4348783. The reversal of 4348781 is 1878434.

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., 2220100 + 2128681 = 1490^2 + 1459^2 .

It is a cyclic number.

It is not a de Polignac number, because 4348781 - 2⁶ = 4348717 is a prime.

It is a super-2 number, since 2×4348781² = 37823792371922, which contains 22 as substring.

Together with 4348783, 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 (4348783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2174390 + 2174391.

It is an arithmetic number, because the mean of its divisors is an integer number (2174391).

Almost surely, 2^4348781 is an apocalyptic number.

It is an amenable number.

4348781 is a deficient number, since it is larger than the sum of its proper divisors (1).

4348781 is an equidigital number, since it uses as much as digits as its factorization.

4348781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 35.

The square root of 4348781 is about 2085.3731081032. The cubic root of 4348781 is about 163.2259403251.

The spelling of 4348781 in words is "four million, three hundred forty-eight thousand, seven hundred eighty-one".