3815345 has 8 divisors (see below), whose sum is σ = 4641576. Its totient is φ = 3010176.

The previous prime is 3815321. The next prime is 3815351. The reversal of 3815345 is 5435183.

It can be written as a sum of positive squares in 4 ways, for example, as 1507984 + 2307361 = 1228^2 + 1519^2 .

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 3815345 - 2⁶ = 3815281 is a prime.

It is a Duffinian number.

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, 4862 + ... + 5591.

It is an arithmetic number, because the mean of its divisors is an integer number (580197).

Almost surely, 2^3815345 is an apocalyptic number.

It is an amenable number.

3815345 is a deficient number, since it is larger than the sum of its proper divisors (826231).

3815345 is a wasteful number, since it uses less digits than its factorization.

3815345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10531.

The product of its digits is 7200, while the sum is 29.

The square root of 3815345 is about 1953.2908129616. The cubic root of 3815345 is about 156.2588432328.

The spelling of 3815345 in words is "three million, eight hundred fifteen thousand, three hundred forty-five".