3649191 has 16 divisors (see below), whose sum is σ = 5988864. Its totient is φ = 1924704.

The previous prime is 3649181. The next prime is 3649193. The reversal of 3649191 is 1919463.

It is not a de Polignac number, because 3649191 - 2¹⁰ = 3648167 is a prime.

3649191 is a modest number, since divided by 9191 gives 364 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6411 + ... + 6956.

It is an arithmetic number, because the mean of its divisors is an integer number (374304).

Almost surely, 2^3649191 is an apocalyptic number.

3649191 is a deficient number, since it is larger than the sum of its proper divisors (2339673).

3649191 is a wasteful number, since it uses less digits than its factorization.

3649191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13390.

The product of its digits is 5832, while the sum is 33.

The square root of 3649191 is about 1910.2855807444. The cubic root of 3649191 is about 153.9567962237.

The spelling of 3649191 in words is "three million, six hundred forty-nine thousand, one hundred ninety-one".