3648401 has 4 divisors (see below), whose sum is σ = 3665904. Its totient is φ = 3630900.

The previous prime is 3648391. The next prime is 3648409. The reversal of 3648401 is 1048463.

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: 1048463 = 13 ⋅80651.

It is a cyclic number.

It is not a de Polignac number, because 3648401 - 2¹⁰ = 3647377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3648409) 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, 8435 + ... + 8856.

It is an arithmetic number, because the mean of its divisors is an integer number (916476).

Almost surely, 2^3648401 is an apocalyptic number.

It is an amenable number.

3648401 is a deficient number, since it is larger than the sum of its proper divisors (17503).

3648401 is a wasteful number, since it uses less digits than its factorization.

3648401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17502.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 3648401 is about 1910.0787941863. The cubic root of 3648401 is about 153.9456855742.

The spelling of 3648401 in words is "three million, six hundred forty-eight thousand, four hundred one".