3658664 has 8 divisors (see below), whose sum is σ = 6860010. Its totient is φ = 1829328.

The previous prime is 3658661. The next prime is 3658667. The reversal of 3658664 is 4668563.

It is an interprime number because it is at equal distance from previous prime (3658661) and next prime (3658667).

It can be written as a sum of positive squares in only one way, i.e., 3034564 + 624100 = 1742^2 + 790^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (3658661) 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 as a sum of consecutive naturals, namely, 228659 + ... + 228674.

Almost surely, 2^3658664 is an apocalyptic number.

It is an amenable number.

3658664 is a deficient number, since it is larger than the sum of its proper divisors (3201346).

3658664 is a wasteful number, since it uses less digits than its factorization.

3658664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457339 (or 457335 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 3658664 is about 1912.7634459075. The cubic root of 3658664 is about 154.0899008449.

The spelling of 3658664 in words is "three million, six hundred fifty-eight thousand, six hundred sixty-four".