75467321 has 2 divisors, whose sum is σ = 75467322. Its totient is φ = 75467320.

The previous prime is 75467291. The next prime is 75467323. The reversal of 75467321 is 12376457.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40195600 + 35271721 = 6340^2 + 5939^2 .

It is a cyclic number.

It is not a de Polignac number, because 75467321 - 2⁶ = 75467257 is a prime.

It is a Sophie Germain prime.

Together with 75467323, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (75467323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37733660 + 37733661.

It is an arithmetic number, because the mean of its divisors is an integer number (37733661).

Almost surely, 2^75467321 is an apocalyptic number.

It is an amenable number.

75467321 is a deficient number, since it is larger than the sum of its proper divisors (1).

75467321 is an equidigital number, since it uses as much as digits as its factorization.

75467321 is an odious number, because the sum of its binary digits is odd.

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

The square root of 75467321 is about 8687.1929298249. The cubic root of 75467321 is about 422.5904170249.

The spelling of 75467321 in words is "seventy-five million, four hundred sixty-seven thousand, three hundred twenty-one".