3698545 has 8 divisors (see below), whose sum is σ = 4499496. Its totient is φ = 2918016.

The previous prime is 3698531. The next prime is 3698551. The reversal of 3698545 is 5458963.

It can be written as a sum of positive squares in 4 ways, for example, as 906304 + 2792241 = 952^2 + 1671^2 .

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 3698545 - 2⁷ = 3698417 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3698498 and 3698507.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 4702 + ... + 5431.

It is an arithmetic number, because the mean of its divisors is an integer number (562437).

Almost surely, 2^3698545 is an apocalyptic number.

It is an amenable number.

3698545 is a deficient number, since it is larger than the sum of its proper divisors (800951).

3698545 is a wasteful number, since it uses less digits than its factorization.

3698545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10211.

The product of its digits is 129600, while the sum is 40.

The square root of 3698545 is about 1923.1601597371. The cubic root of 3698545 is about 154.6477606655.

The spelling of 3698545 in words is "three million, six hundred ninety-eight thousand, five hundred forty-five".