3657349 has 4 divisors (see below), whose sum is σ = 3775360. Its totient is φ = 3539340.

The previous prime is 3657347. The next prime is 3657361. The reversal of 3657349 is 9437563.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9437563 = 701 ⋅13463.

It is a cyclic number.

It is not a de Polignac number, because 3657349 - 2¹ = 3657347 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 3⁷ + 6⁸ + 5⁹ + 7⁴ + 3⁹ + 4⁴ + 9² .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3657341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58959 + ... + 59020.

It is an arithmetic number, because the mean of its divisors is an integer number (943840).

Almost surely, 2^3657349 is an apocalyptic number.

It is an amenable number.

3657349 is a deficient number, since it is larger than the sum of its proper divisors (118011).

3657349 is a wasteful number, since it uses less digits than its factorization.

3657349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118010.

The product of its digits is 68040, while the sum is 37.

The square root of 3657349 is about 1912.4196715156. The cubic root of 3657349 is about 154.0714375934.

The spelling of 3657349 in words is "three million, six hundred fifty-seven thousand, three hundred forty-nine".