3659775 has 24 divisors (see below), whose sum is σ = 6916224. Its totient is φ = 1672800.

The previous prime is 3659717. The next prime is 3659779. The reversal of 3659775 is 5779563.

It is not a de Polignac number, because 3659775 - 2¹⁰ = 3658751 is a prime.

3659775 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3659779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2961 + ... + 4010.

It is an arithmetic number, because the mean of its divisors is an integer number (288176).

Almost surely, 2^3659775 is an apocalyptic number.

3659775 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3659775 is a deficient number, since it is larger than the sum of its proper divisors (3256449).

3659775 is a wasteful number, since it uses less digits than its factorization.

3659775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6991 (or 6986 counting only the distinct ones).

The product of its digits is 198450, while the sum is 42.

The square root of 3659775 is about 1913.0538413751. The cubic root of 3659775 is about 154.1054963878.

The spelling of 3659775 in words is "three million, six hundred fifty-nine thousand, seven hundred seventy-five".