3618733 has 4 divisors (see below), whose sum is σ = 3638908. Its totient is φ = 3598560.

The previous prime is 3618709. The next prime is 3618743. The reversal of 3618733 is 3378163.

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

It can be written as a sum of positive squares in 2 ways, for example, as 806404 + 2812329 = 898^2 + 1677^2 .

It is a cyclic number.

It is not a de Polignac number, because 3618733 - 2¹⁷ = 3487661 is a prime.

It is a Duffinian number.

3618733 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3618695 and 3618704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3618743) 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, 9816 + ... + 10177.

It is an arithmetic number, because the mean of its divisors is an integer number (909727).

Almost surely, 2^3618733 is an apocalyptic number.

It is an amenable number.

3618733 is a deficient number, since it is larger than the sum of its proper divisors (20175).

3618733 is a wasteful number, since it uses less digits than its factorization.

3618733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20174.

The product of its digits is 9072, while the sum is 31.

The square root of 3618733 is about 1902.2967696971. The cubic root of 3618733 is about 153.5272651190.

It can be divided in two parts, 36 and 18733, that added together give a square (18769 = 137²).

The spelling of 3618733 in words is "three million, six hundred eighteen thousand, seven hundred thirty-three".