75044897 has 2 divisors, whose sum is σ = 75044898. Its totient is φ = 75044896.

The previous prime is 75044887. The next prime is 75044899. The reversal of 75044897 is 79844057.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39891856 + 35153041 = 6316^2 + 5929^2 .

It is an emirp because it is prime and its reverse (79844057) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75044897 - 2⁶ = 75044833 is a prime.

Together with 75044899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75044899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37522448 + 37522449.

It is an arithmetic number, because the mean of its divisors is an integer number (37522449).

Almost surely, 2^75044897 is an apocalyptic number.

It is an amenable number.

75044897 is a deficient number, since it is larger than the sum of its proper divisors (1).

75044897 is an equidigital number, since it uses as much as digits as its factorization.

75044897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 75044897 is about 8662.8457795346. The cubic root of 75044897 is about 421.8004660791.

The spelling of 75044897 in words is "seventy-five million, forty-four thousand, eight hundred ninety-seven".