3698845 has 8 divisors (see below), whose sum is σ = 4462776. Its totient is φ = 2942976.

The previous prime is 3698839. The next prime is 3698861. The reversal of 3698845 is 5488963.

3698845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4761 + 3694084 = 69^2 + 1922^2 .

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 3698845 - 2¹⁵ = 3666077 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 6² + 9⁴ + 8³ + 8⁷ + 4⁴ + 5 .

It is a Duffinian number.

3698845 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 952 + ... + 2881.

It is an arithmetic number, because the mean of its divisors is an integer number (557847).

Almost surely, 2^3698845 is an apocalyptic number.

It is an amenable number.

3698845 is a deficient number, since it is larger than the sum of its proper divisors (763931).

3698845 is a wasteful number, since it uses less digits than its factorization.

3698845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031.

The product of its digits is 207360, while the sum is 43.

The square root of 3698845 is about 1923.2381547796. The cubic root of 3698845 is about 154.6519418660.

The spelling of 3698845 in words is "three million, six hundred ninety-eight thousand, eight hundred forty-five".