3649331 has 8 divisors (see below), whose sum is σ = 4314720. Its totient is φ = 3019968.

The previous prime is 3649313. The next prime is 3649337. The reversal of 3649331 is 1339463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3649331 is a prime.

It is a super-2 number, since 2×3649331² = 26635233495122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3649294 and 3649303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8786 + ... + 9191.

It is an arithmetic number, because the mean of its divisors is an integer number (539340).

Almost surely, 2^3649331 is an apocalyptic number.

3649331 is a deficient number, since it is larger than the sum of its proper divisors (665389).

3649331 is a wasteful number, since it uses less digits than its factorization.

3649331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18013.

The product of its digits is 5832, while the sum is 29.

The square root of 3649331 is about 1910.3222241287. The cubic root of 3649331 is about 153.9587650323.

The spelling of 3649331 in words is "three million, six hundred forty-nine thousand, three hundred thirty-one".