3649111 has 4 divisors (see below), whose sum is σ = 3807792. Its totient is φ = 3490432.

The previous prime is 3649097. The next prime is 3649133. The reversal of 3649111 is 1119463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1119463 = 643 ⋅1741.

It is a cyclic number.

It is not a de Polignac number, because 3649111 - 2²¹ = 1551959 is a prime.

It is a super-2 number, since 2×3649111² = 26632022180642, which contains 22 as substring.

It is a Duffinian number.

3649111 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649181) 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, 79306 + ... + 79351.

It is an arithmetic number, because the mean of its divisors is an integer number (951948).

Almost surely, 2^3649111 is an apocalyptic number.

3649111 is a deficient number, since it is larger than the sum of its proper divisors (158681).

3649111 is a wasteful number, since it uses less digits than its factorization.

3649111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158680.

The product of its digits is 648, while the sum is 25.

The square root of 3649111 is about 1910.2646413521. The cubic root of 3649111 is about 153.9556711677.

Subtracting from 3649111 its product of digits (648), we obtain a palindrome (3648463).

The spelling of 3649111 in words is "three million, six hundred forty-nine thousand, one hundred eleven".