75756869 has 2 divisors, whose sum is σ = 75756870. Its totient is φ = 75756868.

The previous prime is 75756803. The next prime is 75756883. The reversal of 75756869 is 96865757.

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., 59876644 + 15880225 = 7738^2 + 3985^2 .

It is a cyclic number.

It is not a de Polignac number, because 75756869 - 2¹² = 75752773 is a prime.

It is a super-2 number, since 2×75756869² = 11478206401366322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75756869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75756169) 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, 37878434 + 37878435.

It is an arithmetic number, because the mean of its divisors is an integer number (37878435).

Almost surely, 2^75756869 is an apocalyptic number.

It is an amenable number.

75756869 is a deficient number, since it is larger than the sum of its proper divisors (1).

75756869 is an equidigital number, since it uses as much as digits as its factorization.

75756869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3175200, while the sum is 53.

The square root of 75756869 is about 8703.8421975585. The cubic root of 75756869 is about 423.1301829055.

The spelling of 75756869 in words is "seventy-five million, seven hundred fifty-six thousand, eight hundred sixty-nine".