3659658 has 16 divisors (see below), whose sum is σ = 7750080. Its totient is φ = 1148096.

The previous prime is 3659657. The next prime is 3659659. The reversal of 3659658 is 8569563.

It is an interprime number because it is at equal distance from previous prime (3659657) and next prime (3659659).

It is a d-powerful number, because it can be written as 3⁹ + 6² + 5³ + 9⁴ + 6⁸ + 5⁹ + 8³ .

It is not an unprimeable number, because it can be changed into a prime (3659651) 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, 17838 + ... + 18041.

It is an arithmetic number, because the mean of its divisors is an integer number (484380).

Almost surely, 2^3659658 is an apocalyptic number.

3659658 is an abundant number, since it is smaller than the sum of its proper divisors (4090422).

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

3659658 is a wasteful number, since it uses less digits than its factorization.

3659658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35901.

The product of its digits is 194400, while the sum is 42.

The square root of 3659658 is about 1913.0232617509. The cubic root of 3659658 is about 154.1038541616.

The spelling of 3659658 in words is "three million, six hundred fifty-nine thousand, six hundred fifty-eight".