75728033 has 2 divisors, whose sum is σ = 75728034. Its totient is φ = 75728032.

The previous prime is 75728017. The next prime is 75728101. The reversal of 75728033 is 33082757.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74511424 + 1216609 = 8632^2 + 1103^2 .

It is a cyclic number.

It is not a de Polignac number, because 75728033 - 2⁴ = 75728017 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 75727984 and 75728002.

It is not a weakly prime, because it can be changed into another prime (75728833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37864016 + 37864017.

It is an arithmetic number, because the mean of its divisors is an integer number (37864017).

Almost surely, 2^75728033 is an apocalyptic number.

It is an amenable number.

75728033 is a deficient number, since it is larger than the sum of its proper divisors (1).

75728033 is an equidigital number, since it uses as much as digits as its factorization.

75728033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 75728033 is about 8702.1855300838. The cubic root of 75728033 is about 423.0764895109.

The spelling of 75728033 in words is "seventy-five million, seven hundred twenty-eight thousand, thirty-three".