33989297 has 2 divisors, whose sum is σ = 33989298. Its totient is φ = 33989296.

The previous prime is 33989269. The next prime is 33989317. The reversal of 33989297 is 79298933.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23902321 + 10086976 = 4889^2 + 3176^2 .

It is a cyclic number.

It is not a de Polignac number, because 33989297 - 2¹² = 33985201 is a prime.

It is not a weakly prime, because it can be changed into another prime (33989497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16994648 + 16994649.

It is an arithmetic number, because the mean of its divisors is an integer number (16994649).

Almost surely, 2^33989297 is an apocalyptic number.

It is an amenable number.

33989297 is a deficient number, since it is larger than the sum of its proper divisors (1).

33989297 is an equidigital number, since it uses as much as digits as its factorization.

33989297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 50.

The square root of 33989297 is about 5830.0340479280. The cubic root of 33989297 is about 323.9271828688.

The spelling of 33989297 in words is "thirty-three million, nine hundred eighty-nine thousand, two hundred ninety-seven".