3649273 has 16 divisors (see below), whose sum is σ = 4104000. Its totient is φ = 3229632.

The previous prime is 3649259. The next prime is 3649297. The reversal of 3649273 is 3729463.

It is a cyclic number.

It is not a de Polignac number, because 3649273 - 2⁵ = 3649241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3649253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20298 + ... + 20476.

It is an arithmetic number, because the mean of its divisors is an integer number (256500).

Almost surely, 2^3649273 is an apocalyptic number.

It is an amenable number.

3649273 is a deficient number, since it is larger than the sum of its proper divisors (454727).

3649273 is a wasteful number, since it uses less digits than its factorization.

3649273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264.

The product of its digits is 27216, while the sum is 34.

The square root of 3649273 is about 1910.3070433833. The cubic root of 3649273 is about 153.9579493892.

The spelling of 3649273 in words is "three million, six hundred forty-nine thousand, two hundred seventy-three".