33040897 has 2 divisors, whose sum is σ = 33040898. Its totient is φ = 33040896.

The previous prime is 33040883. The next prime is 33040901. The reversal of 33040897 is 79804033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29203216 + 3837681 = 5404^2 + 1959^2 .

It is an emirp because it is prime and its reverse (79804033) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33040897 is a prime.

It is not a weakly prime, because it can be changed into another prime (33040697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16520448 + 16520449.

It is an arithmetic number, because the mean of its divisors is an integer number (16520449).

Almost surely, 2^33040897 is an apocalyptic number.

33040897 is the 3073-rd centered heptagonal number.

It is an amenable number.

33040897 is a deficient number, since it is larger than the sum of its proper divisors (1).

33040897 is an equidigital number, since it uses as much as digits as its factorization.

33040897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 33040897 is about 5748.1211713046. The cubic root of 33040897 is about 320.8858818670.

The spelling of 33040897 in words is "thirty-three million, forty thousand, eight hundred ninety-seven".