3634261 has 2 divisors, whose sum is σ = 3634262. Its totient is φ = 3634260.

The previous prime is 3634249. The next prime is 3634271. The reversal of 3634261 is 1624363.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3538161 + 96100 = 1881^2 + 310^2 .

It is a cyclic number.

It is not a de Polignac number, because 3634261 - 2¹⁷ = 3503189 is a prime.

It is a super-2 number, since 2×3634261² = 26415706032242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3634201) 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 as a sum of consecutive naturals, namely, 1817130 + 1817131.

It is an arithmetic number, because the mean of its divisors is an integer number (1817131).

Almost surely, 2^3634261 is an apocalyptic number.

It is an amenable number.

3634261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3634261 is an equidigital number, since it uses as much as digits as its factorization.

3634261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 25.

The square root of 3634261 is about 1906.3737828663. The cubic root of 3634261 is about 153.7465471717.

It can be divided in two parts, 363 and 4261, that added together give a square (4624 = 68²).

The spelling of 3634261 in words is "three million, six hundred thirty-four thousand, two hundred sixty-one".