33928397 has 2 divisors, whose sum is σ = 33928398. Its totient is φ = 33928396.

The previous prime is 33928337. The next prime is 33928399. The reversal of 33928397 is 79382933.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21104836 + 12823561 = 4594^2 + 3581^2 .

It is a cyclic number.

It is not a de Polignac number, because 33928397 - 2¹⁴ = 33912013 is a prime.

It is a super-2 number, since 2×33928397² = 2302272245979218, which contains 22 as substring.

Together with 33928399, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33928399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16964198 + 16964199.

It is an arithmetic number, because the mean of its divisors is an integer number (16964199).

Almost surely, 2^33928397 is an apocalyptic number.

It is an amenable number.

33928397 is a deficient number, since it is larger than the sum of its proper divisors (1).

33928397 is an equidigital number, since it uses as much as digits as its factorization.

33928397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 44.

The square root of 33928397 is about 5824.8087522253. The cubic root of 33928397 is about 323.7336027234.

The spelling of 33928397 in words is "thirty-three million, nine hundred twenty-eight thousand, three hundred ninety-seven".