3745815 has 8 divisors (see below), whose sum is σ = 5993328. Its totient is φ = 1997760.

The previous prime is 3745813. The next prime is 3745829. The reversal of 3745815 is 5185473.

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

It is not a de Polignac number, because 3745815 - 2¹ = 3745813 is a prime.

It is a super-2 number, since 2×3745815² = 28062260028450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

3745815 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3745811) 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, 124846 + ... + 124875.

It is an arithmetic number, because the mean of its divisors is an integer number (749166).

Almost surely, 2^3745815 is an apocalyptic number.

3745815 is a deficient number, since it is larger than the sum of its proper divisors (2247513).

3745815 is a wasteful number, since it uses less digits than its factorization.

3745815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249729.

The product of its digits is 16800, while the sum is 33.

The square root of 3745815 is about 1935.4108091049. The cubic root of 3745815 is about 155.3038092602.

It can be divided in two parts, 37458 and 15, that added together give a palindrome (37473).

The spelling of 3745815 in words is "three million, seven hundred forty-five thousand, eight hundred fifteen".