3648906 has 12 divisors (see below), whose sum is σ = 7906002. Its totient is φ = 1216296.

The previous prime is 3648899. The next prime is 3648913. The reversal of 3648906 is 6098463.

3648906 is a `hidden beast` number, since 3 + 648 + 9 + 0 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (3648899) and next prime (3648913).

It can be written as a sum of positive squares in only one way, i.e., 3629025 + 19881 = 1905^2 + 141^2 .

It is a Curzon number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 101341 + ... + 101376.

Almost surely, 2^3648906 is an apocalyptic number.

3648906 is an abundant number, since it is smaller than the sum of its proper divisors (4257096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3648906 is a wasteful number, since it uses less digits than its factorization.

3648906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202725 (or 202722 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 3648906 is about 1910.2109831116. The cubic root of 3648906 is about 153.9527881364.

It can be divided in two parts, 3648 and 906, that added together give a palindrome (4554).

The spelling of 3648906 in words is "three million, six hundred forty-eight thousand, nine hundred six".