3626605 has 4 divisors (see below), whose sum is σ = 4351932. Its totient is φ = 2901280.

The previous prime is 3626569. The next prime is 3626611. The reversal of 3626605 is 5066263.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5066263 = 293 ⋅17291.

It can be written as a sum of positive squares in 2 ways, for example, as 1855044 + 1771561 = 1362^2 + 1331^2 .

It is not a de Polignac number, because 3626605 - 2¹⁹ = 3102317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362656 + ... + 362665.

It is an arithmetic number, because the mean of its divisors is an integer number (1087983).

Almost surely, 2^3626605 is an apocalyptic number.

It is an amenable number.

3626605 is a deficient number, since it is larger than the sum of its proper divisors (725327).

3626605 is an equidigital number, since it uses as much as digits as its factorization.

3626605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725326.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 3626605 is about 1904.3647234708. The cubic root of 3626605 is about 153.6385095184.

The spelling of 3626605 in words is "three million, six hundred twenty-six thousand, six hundred five".