75429227 has 2 divisors, whose sum is σ = 75429228. Its totient is φ = 75429226.

The previous prime is 75429223. The next prime is 75429239. The reversal of 75429227 is 72292457.

It is a weak prime.

It is an emirp because it is prime and its reverse (72292457) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75429227 - 2² = 75429223 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75429223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37714613 + 37714614.

It is an arithmetic number, because the mean of its divisors is an integer number (37714614).

Almost surely, 2^75429227 is an apocalyptic number.

75429227 is a deficient number, since it is larger than the sum of its proper divisors (1).

75429227 is an equidigital number, since it uses as much as digits as its factorization.

75429227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 38.

The square root of 75429227 is about 8685.0001151410. Note that the first 3 decimals coincide. The cubic root of 75429227 is about 422.5193007300.

The spelling of 75429227 in words is "seventy-five million, four hundred twenty-nine thousand, two hundred twenty-seven".