3608641 has 8 divisors (see below), whose sum is σ = 3870720. Its totient is φ = 3352128.

The previous prime is 3608639. The next prime is 3608653. The reversal of 3608641 is 1468063.

3608641 is a nontrivial binomial coefficient, being equal to C(2687, 2).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3608641 - 2¹ = 3608639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3608621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1 + ... + 2686.

It is an arithmetic number, because the mean of its divisors is an integer number (483840).

Almost surely, 2^3608641 is an apocalyptic number.

3608641 is the 2686-th triangular number.

3608641 is the 896-th centered nonagonal number.

It is an amenable number.

3608641 is a deficient number, since it is larger than the sum of its proper divisors (262079).

3608641 is a wasteful number, since it uses less digits than its factorization.

3608641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 3608641 is about 1899.6423347567. The cubic root of 3608641 is about 153.3844121991.

The spelling of 3608641 in words is "three million, six hundred eight thousand, six hundred forty-one".