3648859 has 2 divisors, whose sum is σ = 3648860. Its totient is φ = 3648858.

The previous prime is 3648857. The next prime is 3648899. The reversal of 3648859 is 9588463.

It is a weak prime.

It is an emirp because it is prime and its reverse (9588463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3648859 - 2¹ = 3648857 is a prime.

Together with 3648857, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3648857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1824429 + 1824430.

It is an arithmetic number, because the mean of its divisors is an integer number (1824430).

Almost surely, 2^3648859 is an apocalyptic number.

3648859 is a deficient number, since it is larger than the sum of its proper divisors (1).

3648859 is an equidigital number, since it uses as much as digits as its factorization.

3648859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 43.

The square root of 3648859 is about 1910.1986807660. The cubic root of 3648859 is about 153.9521271335.

The spelling of 3648859 in words is "three million, six hundred forty-eight thousand, eight hundred fifty-nine".