3647201 has 4 divisors (see below), whose sum is σ = 3745812. Its totient is φ = 3548592.

The previous prime is 3647177. The next prime is 3647207. The reversal of 3647201 is 1027463.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1957201 + 1690000 = 1399^2 + 1300^2 .

It is a cyclic number.

It is not a de Polignac number, because 3647201 - 2¹⁴ = 3630817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3647207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49250 + ... + 49323.

It is an arithmetic number, because the mean of its divisors is an integer number (936453).

Almost surely, 2^3647201 is an apocalyptic number.

It is an amenable number.

3647201 is a deficient number, since it is larger than the sum of its proper divisors (98611).

3647201 is an equidigital number, since it uses as much as digits as its factorization.

3647201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98610.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 3647201 is about 1909.7646451854. The cubic root of 3647201 is about 153.9288055693.

The spelling of 3647201 in words is "three million, six hundred forty-seven thousand, two hundred one".