3447641 has 2 divisors, whose sum is σ = 3447642. Its totient is φ = 3447640.

The previous prime is 3447629. The next prime is 3447643. The reversal of 3447641 is 1467443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3345241 + 102400 = 1829^2 + 320^2 .

It is an emirp because it is prime and its reverse (1467443) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3447641 is a prime.

Together with 3447643, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₂₄₆₇₄₆ and since 3447641 and 246746 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (3447643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1723820 + 1723821.

It is an arithmetic number, because the mean of its divisors is an integer number (1723821).

Almost surely, 2^3447641 is an apocalyptic number.

It is an amenable number.

3447641 is a deficient number, since it is larger than the sum of its proper divisors (1).

3447641 is an equidigital number, since it uses as much as digits as its factorization.

3447641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 29.

The square root of 3447641 is about 1856.7824320582. The cubic root of 3447641 is about 151.0685331350.

The spelling of 3447641 in words is "three million, four hundred forty-seven thousand, six hundred forty-one".