3649904187 has 8 divisors (see below), whose sum is σ = 4867877136. Its totient is φ = 2432600352.

The previous prime is 3649904177. The next prime is 3649904213. The reversal of 3649904187 is 7814099463.

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

It is not a de Polignac number, because 3649904187 - 2¹⁸ = 3649642043 is a prime.

It is a super-3 number, since 3×3649904187³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3649904107) 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, 154408 + ... + 176469.

It is an arithmetic number, because the mean of its divisors is an integer number (608484642).

Almost surely, 2^3649904187 is an apocalyptic number.

3649904187 is a deficient number, since it is larger than the sum of its proper divisors (1217972949).

3649904187 is a wasteful number, since it uses less digits than its factorization.

3649904187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334557.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 3649904187 is about 60414.4369087390. The cubic root of 3649904187 is about 1539.6682518938.

The spelling of 3649904187 in words is "three billion, six hundred forty-nine million, nine hundred four thousand, one hundred eighty-seven".