33396997 has 2 divisors, whose sum is σ = 33396998. Its totient is φ = 33396996.

The previous prime is 33396991. The next prime is 33397033. The reversal of 33396997 is 79969333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23824161 + 9572836 = 4881^2 + 3094^2 .

33396997 is a truncatable prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33396997 is a prime.

It is a super-2 number, since 2×33396997² = 2230718817236018, 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 33396997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33396991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16698498 + 16698499.

It is an arithmetic number, because the mean of its divisors is an integer number (16698499).

Almost surely, 2^33396997 is an apocalyptic number.

It is an amenable number.

33396997 is a deficient number, since it is larger than the sum of its proper divisors (1).

33396997 is an equidigital number, since it uses as much as digits as its factorization.

33396997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 826686, while the sum is 49.

The square root of 33396997 is about 5779.0134971291. The cubic root of 33396997 is about 322.0345532150.

The spelling of 33396997 in words is "thirty-three million, three hundred ninety-six thousand, nine hundred ninety-seven".