3640111 has 4 divisors (see below), whose sum is σ = 3651912. Its totient is φ = 3628312.

The previous prime is 3640081. The next prime is 3640121. The reversal of 3640111 is 1110463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1110463 = 23 ⋅48281.

It is a cyclic number.

It is not a de Polignac number, because 3640111 - 2⁷ = 3639983 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 (3640121) 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, 5425 + ... + 6058.

It is an arithmetic number, because the mean of its divisors is an integer number (912978).

Almost surely, 2^3640111 is an apocalyptic number.

3640111 is a deficient number, since it is larger than the sum of its proper divisors (11801).

3640111 is a wasteful number, since it uses less digits than its factorization.

3640111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11800.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3640111 is about 1907.9074925163. The cubic root of 3640111 is about 153.8289972342.

Adding to 3640111 its reverse (1110463), we get a palindrome (4750574).

The spelling of 3640111 in words is "three million, six hundred forty thousand, one hundred eleven".