3702845 has 16 divisors (see below), whose sum is σ = 4607280. Its totient is φ = 2855424.

The previous prime is 3702841. The next prime is 3702869. The reversal of 3702845 is 5482073.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 190969 + 3511876 = 437^2 + 1874^2 .

It is a cyclic number.

It is not a de Polignac number, because 3702845 - 2² = 3702841 is a prime.

It is a super-2 number, since 2×3702845² = 27422122188050, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3¹³ + 7² + 0 + 2¹³ + 8⁷ + 4 + 5⁵ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3702841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23507 + ... + 23663.

It is an arithmetic number, because the mean of its divisors is an integer number (287955).

Almost surely, 2^3702845 is an apocalyptic number.

It is an amenable number.

3702845 is a deficient number, since it is larger than the sum of its proper divisors (904435).

3702845 is a wasteful number, since it uses less digits than its factorization.

3702845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 3702845 is about 1924.2777865994. The cubic root of 3702845 is about 154.7076696143.

It can be divided in two parts, 37028 and 45, that added together give a palindrome (37073).

The spelling of 3702845 in words is "three million, seven hundred two thousand, eight hundred forty-five".