3645826 has 8 divisors (see below), whose sum is σ = 5483340. Its totient is φ = 1818048.

The previous prime is 3645823. The next prime is 3645877. The reversal of 3645826 is 6285463.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3222025 + 423801 = 1795^2 + 651^2 .

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

It is a d-powerful number, because it can be written as 3¹³ + 6 + 4⁸ + 5⁹ + 8⁵ + 2⁵ + 6² .

It is a junction number, because it is equal to n+sod(n) for n = 3645791 and 3645800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1411 + ... + 3046.

Almost surely, 2^3645826 is an apocalyptic number.

3645826 is a deficient number, since it is larger than the sum of its proper divisors (1837514).

3645826 is a wasteful number, since it uses less digits than its factorization.

3645826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4868.

The product of its digits is 34560, while the sum is 34.

The square root of 3645826 is about 1909.4046192465. The cubic root of 3645826 is about 153.9094593446.

The spelling of 3645826 in words is "three million, six hundred forty-five thousand, eight hundred twenty-six".