3698665 has 8 divisors (see below), whose sum is σ = 4533120. Its totient is φ = 2895792.

The previous prime is 3698663. The next prime is 3698671. The reversal of 3698665 is 5668963.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3698665 - 2¹ = 3698663 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3698663) 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, 7635 + ... + 8104.

It is an arithmetic number, because the mean of its divisors is an integer number (566640).

Almost surely, 2^3698665 is an apocalyptic number.

It is an amenable number.

3698665 is a deficient number, since it is larger than the sum of its proper divisors (834455).

3698665 is a wasteful number, since it uses less digits than its factorization.

3698665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15791.

The product of its digits is 233280, while the sum is 43.

The square root of 3698665 is about 1923.1913581337. The cubic root of 3698665 is about 154.6494331728.

The spelling of 3698665 in words is "three million, six hundred ninety-eight thousand, six hundred sixty-five".