33489421 has 8 divisors (see below), whose sum is σ = 38735424. Its totient is φ = 28358880.

The previous prime is 33489377. The next prime is 33489431. The reversal of 33489421 is 12498433.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33489421 - 2⁷ = 33489293 is a prime.

It is a super-2 number, since 2×33489421² = 2243082637830482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33489431) 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 7 ways as a sum of consecutive naturals, for example, 28240 + ... + 29401.

It is an arithmetic number, because the mean of its divisors is an integer number (4841928).

Almost surely, 2^33489421 is an apocalyptic number.

It is an amenable number.

33489421 is a deficient number, since it is larger than the sum of its proper divisors (5246003).

33489421 is an equidigital number, since it uses as much as digits as its factorization.

33489421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57731.

The product of its digits is 20736, while the sum is 34.

The square root of 33489421 is about 5787.0044928270. The cubic root of 33489421 is about 322.3313494339.

It can be divided in two parts, 3348 and 9421, that added together give a square (12769 = 113²).

The spelling of 33489421 in words is "thirty-three million, four hundred eighty-nine thousand, four hundred twenty-one".