3643698 has 16 divisors (see below), whose sum is σ = 7308000. Its totient is φ = 1211136.

The previous prime is 3643681. The next prime is 3643699. The reversal of 3643698 is 8963463.

It is a super-3 number, since 3×3643698³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3643699) 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, 2386 + ... + 3602.

It is an arithmetic number, because the mean of its divisors is an integer number (456750).

Almost surely, 2^3643698 is an apocalyptic number.

3643698 is an abundant number, since it is smaller than the sum of its proper divisors (3664302).

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

3643698 is a wasteful number, since it uses less digits than its factorization.

3643698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721.

The product of its digits is 93312, while the sum is 39.

The square root of 3643698 is about 1908.8472961450. The cubic root of 3643698 is about 153.8795088320.

It can be divided in two parts, 36 and 43698, that added together give a palindrome (43734).

The spelling of 3643698 in words is "three million, six hundred forty-three thousand, six hundred ninety-eight".