3649773 has 4 divisors (see below), whose sum is σ = 4866368. Its totient is φ = 2433180.

The previous prime is 3649771. The next prime is 3649777. The reversal of 3649773 is 3779463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3779463 = 3 ⋅1259821.

It is not a de Polignac number, because 3649773 - 2¹ = 3649771 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649771) 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, 608293 + ... + 608298.

It is an arithmetic number, because the mean of its divisors is an integer number (1216592).

Almost surely, 2^3649773 is an apocalyptic number.

It is an amenable number.

3649773 is a deficient number, since it is larger than the sum of its proper divisors (1216595).

3649773 is a wasteful number, since it uses less digits than its factorization.

3649773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216594.

The product of its digits is 95256, while the sum is 39.

The square root of 3649773 is about 1910.4379079154. The cubic root of 3649773 is about 153.9649805119.

The spelling of 3649773 in words is "three million, six hundred forty-nine thousand, seven hundred seventy-three".