3633261 has 4 divisors (see below), whose sum is σ = 4844352. Its totient is φ = 2422172.

The previous prime is 3633233. The next prime is 3633263. The reversal of 3633261 is 1623363.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3633261 - 2⁵ = 3633229 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3633263) 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 3 ways as a sum of consecutive naturals, for example, 605541 + ... + 605546.

It is an arithmetic number, because the mean of its divisors is an integer number (1211088).

Almost surely, 2^3633261 is an apocalyptic number.

It is an amenable number.

3633261 is a deficient number, since it is larger than the sum of its proper divisors (1211091).

3633261 is a wasteful number, since it uses less digits than its factorization.

3633261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211090.

The product of its digits is 1944, while the sum is 24.

The square root of 3633261 is about 1906.1114867709. Note that the first 3 decimals coincide. The cubic root of 3633261 is about 153.7324442907.

The spelling of 3633261 in words is "three million, six hundred thirty-three thousand, two hundred sixty-one".