3318261 has 4 divisors (see below), whose sum is σ = 4424352. Its totient is φ = 2212172.

The previous prime is 3318251. The next prime is 3318283. The reversal of 3318261 is 1628133.

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 3318261 - 2⁵ = 3318229 is a prime.

It is a super-2 number, since 2×3318261² = 22021712128242, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3318221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553041 + ... + 553046.

It is an arithmetic number, because the mean of its divisors is an integer number (1106088).

Almost surely, 2^3318261 is an apocalyptic number.

It is an amenable number.

3318261 is a deficient number, since it is larger than the sum of its proper divisors (1106091).

3318261 is a wasteful number, since it uses less digits than its factorization.

3318261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106090.

The product of its digits is 864, while the sum is 24.

The square root of 3318261 is about 1821.6094532034. The cubic root of 3318261 is about 149.1546672550.

The spelling of 3318261 in words is "three million, three hundred eighteen thousand, two hundred sixty-one".