75047893 has 2 divisors, whose sum is σ = 75047894. Its totient is φ = 75047892.

The previous prime is 75047851. The next prime is 75047897. The reversal of 75047893 is 39874057.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75047569 + 324 = 8663^2 + 18^2 .

It is an emirp because it is prime and its reverse (39874057) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75047893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75047897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37523946 + 37523947.

It is an arithmetic number, because the mean of its divisors is an integer number (37523947).

Almost surely, 2^75047893 is an apocalyptic number.

It is an amenable number.

75047893 is a deficient number, since it is larger than the sum of its proper divisors (1).

75047893 is an equidigital number, since it uses as much as digits as its factorization.

75047893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 75047893 is about 8663.0187001991. The cubic root of 75047893 is about 421.8060791518.

The spelling of 75047893 in words is "seventy-five million, forty-seven thousand, eight hundred ninety-three".