3909361 has 2 divisors, whose sum is σ = 3909362. Its totient is φ = 3909360.

The previous prime is 3909359. The next prime is 3909397. The reversal of 3909361 is 1639093.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3876961 + 32400 = 1969^2 + 180^2 .

It is a cyclic number.

It is not a de Polignac number, because 3909361 - 2¹ = 3909359 is a prime.

Together with 3909359, it forms a pair of twin primes.

It is a Chen prime.

3909361 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3909341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1954680 + 1954681.

It is an arithmetic number, because the mean of its divisors is an integer number (1954681).

Almost surely, 2^3909361 is an apocalyptic number.

It is an amenable number.

3909361 is a deficient number, since it is larger than the sum of its proper divisors (1).

3909361 is an equidigital number, since it uses as much as digits as its factorization.

3909361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 3909361 is about 1977.2104086313. The cubic root of 3909361 is about 157.5319293627.

The spelling of 3909361 in words is "three million, nine hundred nine thousand, three hundred sixty-one".