3649223 has 4 divisors (see below), whose sum is σ = 3655080. Its totient is φ = 3643368.

The previous prime is 3649207. The next prime is 3649229. The reversal of 3649223 is 3229463.

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

It is a cyclic number.

It is not a de Polignac number, because 3649223 - 2⁴ = 3649207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1865 + ... + 3282.

It is an arithmetic number, because the mean of its divisors is an integer number (913770).

Almost surely, 2^3649223 is an apocalyptic number.

3649223 is a deficient number, since it is larger than the sum of its proper divisors (5857).

3649223 is an equidigital number, since it uses as much as digits as its factorization.

3649223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5856.

The product of its digits is 7776, while the sum is 29.

The square root of 3649223 is about 1910.2939564371. The cubic root of 3649223 is about 153.9572462416.

The spelling of 3649223 in words is "three million, six hundred forty-nine thousand, two hundred twenty-three".