33413321 has 4 divisors (see below), whose sum is σ = 33485952. Its totient is φ = 33340692.

The previous prime is 33413291. The next prime is 33413323. The reversal of 33413321 is 12331433.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12331433 = 199 ⋅61967.

It is a cyclic number.

It is not a de Polignac number, because 33413321 - 2¹⁸ = 33151177 is a prime.

It is a super-2 number, since 2×33413321² = 2232900040498082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33413293 and 33413302.

It is not an unprimeable number, because it can be changed into a prime (33413323) 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, 35621 + ... + 36546.

It is an arithmetic number, because the mean of its divisors is an integer number (8371488).

Almost surely, 2^33413321 is an apocalyptic number.

It is an amenable number.

33413321 is a deficient number, since it is larger than the sum of its proper divisors (72631).

33413321 is an equidigital number, since it uses as much as digits as its factorization.

33413321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72630.

The product of its digits is 648, while the sum is 20.

The square root of 33413321 is about 5780.4256763668. The cubic root of 33413321 is about 322.0870133786.

Adding to 33413321 its reverse (12331433), we get a palindrome (45744754).

The spelling of 33413321 in words is "thirty-three million, four hundred thirteen thousand, three hundred twenty-one".