3648577 has 4 divisors (see below), whose sum is σ = 3774420. Its totient is φ = 3522736.

The previous prime is 3648553. The next prime is 3648581. The reversal of 3648577 is 7758463.

3648577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 703921 + 2944656 = 839^2 + 1716^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3648577 is a prime.

It is a super-2 number, since 2×3648577² = 26624228249858, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3648527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62878 + ... + 62935.

It is an arithmetic number, because the mean of its divisors is an integer number (943605).

Almost surely, 2^3648577 is an apocalyptic number.

It is an amenable number.

3648577 is a deficient number, since it is larger than the sum of its proper divisors (125843).

3648577 is a wasteful number, since it uses less digits than its factorization.

3648577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125842.

The product of its digits is 141120, while the sum is 40.

The square root of 3648577 is about 1910.1248650285. The cubic root of 3648577 is about 153.9481609970.

It can be divided in two parts, 3648 and 577, that added together give a square (4225 = 65²).

The spelling of 3648577 in words is "three million, six hundred forty-eight thousand, five hundred seventy-seven".