3649537 has 4 divisors (see below), whose sum is σ = 3767296. Its totient is φ = 3531780.

The previous prime is 3649531. The next prime is 3649549. The reversal of 3649537 is 7359463.

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.

It is a cyclic number.

It is not a de Polignac number, because 3649537 - 2¹¹ = 3647489 is a prime.

It is a d-powerful number, because it can be written as 3⁴ + 6⁸ + 4⁷ + 9² + 5⁹ + 3⁵ + 7 .

It is a Duffinian number.

3649537 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3649496 and 3649505.

It is not an unprimeable number, because it can be changed into a prime (3649531) 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, 58833 + ... + 58894.

It is an arithmetic number, because the mean of its divisors is an integer number (941824).

It is a Proth number, since it is equal to 891 ⋅ 2¹² + 1 and 891 < 2¹².

Almost surely, 2^3649537 is an apocalyptic number.

It is an amenable number.

3649537 is a deficient number, since it is larger than the sum of its proper divisors (117759).

3649537 is a wasteful number, since it uses less digits than its factorization.

3649537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117758.

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

The square root of 3649537 is about 1910.3761409733. The cubic root of 3649537 is about 153.9616619020.

It can be divided in two parts, 3649 and 537, that added together give a triangular number (4186 = T₉₁).

The spelling of 3649537 in words is "three million, six hundred forty-nine thousand, five hundred thirty-seven".