3612505 has 16 divisors (see below), whose sum is σ = 4712400. Its totient is φ = 2642688.

The previous prime is 3612503. The next prime is 3612509. The reversal of 3612505 is 5052163.

3612505 = 203² + 204² + ... + 267².

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 719104 + 2893401 = 848^2 + 1701^2 .

It is a cyclic number.

It is not a de Polignac number, because 3612505 - 2¹ = 3612503 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (3612503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9499 + ... + 9871.

It is an arithmetic number, because the mean of its divisors is an integer number (294525).

Almost surely, 2^3612505 is an apocalyptic number.

It is an amenable number.

3612505 is a deficient number, since it is larger than the sum of its proper divisors (1099895).

3612505 is a wasteful number, since it uses less digits than its factorization.

3612505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 3612505 is about 1900.6590962085. The cubic root of 3612505 is about 153.4391387989.

Adding to 3612505 its reverse (5052163), we get a palindrome (8664668).

The spelling of 3612505 in words is "three million, six hundred twelve thousand, five hundred five".