3649147 has 2 divisors, whose sum is σ = 3649148. Its totient is φ = 3649146.

The previous prime is 3649133. The next prime is 3649153. The reversal of 3649147 is 7419463.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3649147 is a prime.

It is not a weakly prime, because it can be changed into another prime (3641147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1824573 + 1824574.

It is an arithmetic number, because the mean of its divisors is an integer number (1824574).

Almost surely, 2^3649147 is an apocalyptic number.

3649147 is a deficient number, since it is larger than the sum of its proper divisors (1).

3649147 is an equidigital number, since it uses as much as digits as its factorization.

3649147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 3649147 is about 1910.2740641070. The cubic root of 3649147 is about 153.9561774449.

The spelling of 3649147 in words is "three million, six hundred forty-nine thousand, one hundred forty-seven".