3612261 has 16 divisors (see below), whose sum is σ = 5120000. Its totient is φ = 2258928.

The previous prime is 3612247. The next prime is 3612263. The reversal of 3612261 is 1622163.

It is a happy number.

It is not a de Polignac number, because 3612261 - 2⁶ = 3612197 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 (3612263) 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 15 ways as a sum of consecutive naturals, for example, 6990 + ... + 7488.

It is an arithmetic number, because the mean of its divisors is an integer number (320000).

Almost surely, 2^3612261 is an apocalyptic number.

It is an amenable number.

3612261 is a deficient number, since it is larger than the sum of its proper divisors (1507739).

3612261 is a wasteful number, since it uses less digits than its factorization.

3612261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648.

The product of its digits is 432, while the sum is 21.

The square root of 3612261 is about 1900.5949068647. The cubic root of 3612261 is about 153.4356841331.

The spelling of 3612261 in words is "three million, six hundred twelve thousand, two hundred sixty-one".