75975247 has 2 divisors, whose sum is σ = 75975248. Its totient is φ = 75975246.

The previous prime is 75975241. The next prime is 75975259. The reversal of 75975247 is 74257957.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75975247 - 2¹¹ = 75973199 is a prime.

It is a super-2 number, since 2×75975247² = 11544476313422018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75975197 and 75975206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75975241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37987623 + 37987624.

It is an arithmetic number, because the mean of its divisors is an integer number (37987624).

Almost surely, 2^75975247 is an apocalyptic number.

75975247 is a deficient number, since it is larger than the sum of its proper divisors (1).

75975247 is an equidigital number, since it uses as much as digits as its factorization.

75975247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 617400, while the sum is 46.

The square root of 75975247 is about 8716.3780895507. The cubic root of 75975247 is about 423.5363668789.

The spelling of 75975247 in words is "seventy-five million, nine hundred seventy-five thousand, two hundred forty-seven".