75324497 has 2 divisors, whose sum is σ = 75324498. Its totient is φ = 75324496.

The previous prime is 75324481. The next prime is 75324499. The reversal of 75324497 is 79442357.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74926336 + 398161 = 8656^2 + 631^2 .

It is an emirp because it is prime and its reverse (79442357) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75324497 - 2⁴ = 75324481 is a prime.

Together with 75324499, 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 (75324499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37662248 + 37662249.

It is an arithmetic number, because the mean of its divisors is an integer number (37662249).

Almost surely, 2^75324497 is an apocalyptic number.

It is an amenable number.

75324497 is a deficient number, since it is larger than the sum of its proper divisors (1).

75324497 is an equidigital number, since it uses as much as digits as its factorization.

75324497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 41.

The square root of 75324497 is about 8678.9686599273. The cubic root of 75324497 is about 422.3236606409.

The spelling of 75324497 in words is "seventy-five million, three hundred twenty-four thousand, four hundred ninety-seven".