33420797 has 2 divisors, whose sum is σ = 33420798. Its totient is φ = 33420796.

The previous prime is 33420773. The next prime is 33420811. The reversal of 33420797 is 79702433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18567481 + 14853316 = 4309^2 + 3854^2 .

It is a cyclic number.

It is not a de Polignac number, because 33420797 - 2⁶ = 33420733 is a prime.

It is a super-2 number, since 2×33420797² = 2233899344230418, 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 (33420707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16710398 + 16710399.

It is an arithmetic number, because the mean of its divisors is an integer number (16710399).

Almost surely, 2^33420797 is an apocalyptic number.

It is an amenable number.

33420797 is a deficient number, since it is larger than the sum of its proper divisors (1).

33420797 is an equidigital number, since it uses as much as digits as its factorization.

33420797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 33420797 is about 5781.0723053773. The cubic root of 33420797 is about 322.1110331695. Note that the first 3 decimals are identical.

The spelling of 33420797 in words is "thirty-three million, four hundred twenty thousand, seven hundred ninety-seven".