3666526 has 8 divisors (see below), whose sum is σ = 5823360. Its totient is φ = 1725408.

The previous prime is 3666521. The next prime is 3666529. The reversal of 3666526 is 6256663.

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 107839 = 3666526 / (3 + 6 + 6 + 6 + 5 + 2 + 6).

It is a d-powerful number, because it can be written as 3⁶ + 6² + 6² + 6³ + 5⁹ + 2¹⁵ + 6⁸ .

It is a junction number, because it is equal to n+sod(n) for n = 3666491 and 3666500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666521) 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, 53886 + ... + 53953.

It is an arithmetic number, because the mean of its divisors is an integer number (727920).

Almost surely, 2^3666526 is an apocalyptic number.

3666526 is a deficient number, since it is larger than the sum of its proper divisors (2156834).

3666526 is a wasteful number, since it uses less digits than its factorization.

3666526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107858.

The product of its digits is 38880, while the sum is 34.

The square root of 3666526 is about 1914.8174847750. The cubic root of 3666526 is about 154.2001950289.

It can be divided in two parts, 366652 and 6, that multiplied together give a palindrome (2199912).

The spelling of 3666526 in words is "three million, six hundred sixty-six thousand, five hundred twenty-six".