33450397 has 2 divisors, whose sum is σ = 33450398. Its totient is φ = 33450396.

The previous prime is 33450379. The next prime is 33450401. The reversal of 33450397 is 79305433.

Together with previous prime (33450379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31203396 + 2247001 = 5586^2 + 1499^2 .

It is an emirp because it is prime and its reverse (79305433) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33450397 - 2⁷ = 33450269 is a prime.

It is a super-2 number, since 2×33450397² = 2237858118915218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33450337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16725198 + 16725199.

It is an arithmetic number, because the mean of its divisors is an integer number (16725199).

Almost surely, 2^33450397 is an apocalyptic number.

It is an amenable number.

33450397 is a deficient number, since it is larger than the sum of its proper divisors (1).

33450397 is an equidigital number, since it uses as much as digits as its factorization.

33450397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 34.

The square root of 33450397 is about 5783.6318174656. The cubic root of 33450397 is about 322.2061004529.

The spelling of 33450397 in words is "thirty-three million, four hundred fifty thousand, three hundred ninety-seven".