3649874 has 8 divisors (see below), whose sum is σ = 5564748. Its totient is φ = 1794960.

The previous prime is 3649871. The next prime is 3649889. The reversal of 3649874 is 4789463.

It can be written as a sum of positive squares in 2 ways, for example, as 3636649 + 13225 = 1907^2 + 115^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3649871) 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, 14837 + ... + 15080.

Almost surely, 2^3649874 is an apocalyptic number.

3649874 is a deficient number, since it is larger than the sum of its proper divisors (1914874).

3649874 is a wasteful number, since it uses less digits than its factorization.

3649874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29980.

The product of its digits is 145152, while the sum is 41.

The square root of 3649874 is about 1910.4643414626. The cubic root of 3649874 is about 153.9664007208.

The spelling of 3649874 in words is "three million, six hundred forty-nine thousand, eight hundred seventy-four".