33420407 has 2 divisors, whose sum is σ = 33420408. Its totient is φ = 33420406.

The previous prime is 33420391. The next prime is 33420451. The reversal of 33420407 is 70402433.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (70402433) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33420407 - 2⁴ = 33420391 is a prime.

It is a super-2 number, since 2×33420407² = 2233847208091298, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33420467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16710203 + 16710204.

It is an arithmetic number, because the mean of its divisors is an integer number (16710204).

Almost surely, 2^33420407 is an apocalyptic number.

33420407 is a deficient number, since it is larger than the sum of its proper divisors (1).

33420407 is an equidigital number, since it uses as much as digits as its factorization.

33420407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 33420407 is about 5781.0385745124. The cubic root of 33420407 is about 322.1097802192.

The spelling of 33420407 in words is "thirty-three million, four hundred twenty thousand, four hundred seven".