3645799 has 8 divisors (see below), whose sum is σ = 3824352. Its totient is φ = 3468960.

The previous prime is 3645791. The next prime is 3645809. The reversal of 3645799 is 9975463.

3645799 = 195² + 196² + ... + 263².

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 3645799 - 2³ = 3645791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645791) by changing a digit.

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, 6469 + ... + 7009.

It is an arithmetic number, because the mean of its divisors is an integer number (478044).

Almost surely, 2^3645799 is an apocalyptic number.

3645799 is a deficient number, since it is larger than the sum of its proper divisors (178553).

3645799 is a wasteful number, since it uses less digits than its factorization.

3645799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857.

The product of its digits is 204120, while the sum is 43.

The square root of 3645799 is about 1909.3975489667. The cubic root of 3645799 is about 153.9090794064.

It can be divided in two parts, 3645 and 799, that added together give a palindrome (4444).

The spelling of 3645799 in words is "three million, six hundred forty-five thousand, seven hundred ninety-nine".