33216797 has 2 divisors, whose sum is σ = 33216798. Its totient is φ = 33216796.

The previous prime is 33216767. The next prime is 33216811. The reversal of 33216797 is 79761233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26770276 + 6446521 = 5174^2 + 2539^2 .

It is a cyclic number.

It is not a de Polignac number, because 33216797 - 2¹⁴ = 33200413 is a prime.

It is a super-2 number, since 2×33216797² = 2206711205878418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33216797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33216707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16608398 + 16608399.

It is an arithmetic number, because the mean of its divisors is an integer number (16608399).

Almost surely, 2^33216797 is an apocalyptic number.

It is an amenable number.

33216797 is a deficient number, since it is larger than the sum of its proper divisors (1).

33216797 is an equidigital number, since it uses as much as digits as its factorization.

33216797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 38.

The square root of 33216797 is about 5763.4015129956. The cubic root of 33216797 is about 321.4543083072.

The spelling of 33216797 in words is "thirty-three million, two hundred sixteen thousand, seven hundred ninety-seven".