33084421 has 2 divisors, whose sum is σ = 33084422. Its totient is φ = 33084420.

The previous prime is 33084383. The next prime is 33084433. The reversal of 33084421 is 12448033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29702500 + 3381921 = 5450^2 + 1839^2 .

It is a cyclic number.

It is not a de Polignac number, because 33084421 - 2¹¹ = 33082373 is a prime.

It is equal to p_2036491 and since 33084421 and 2036491 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33084451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16542210 + 16542211.

It is an arithmetic number, because the mean of its divisors is an integer number (16542211).

Almost surely, 2^33084421 is an apocalyptic number.

It is an amenable number.

33084421 is a deficient number, since it is larger than the sum of its proper divisors (1).

33084421 is an equidigital number, since it uses as much as digits as its factorization.

33084421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 33084421 is about 5751.9058580613. The cubic root of 33084421 is about 321.0267185312.

The spelling of 33084421 in words is "thirty-three million, eighty-four thousand, four hundred twenty-one".