75371669 has 2 divisors, whose sum is σ = 75371670. Its totient is φ = 75371668.

The previous prime is 75371623. The next prime is 75371687. The reversal of 75371669 is 96617357.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75082225 + 289444 = 8665^2 + 538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75371669 is a prime.

It is a super-2 number, since 2×75371669² = 11361776975691122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75371269) 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, 37685834 + 37685835.

It is an arithmetic number, because the mean of its divisors is an integer number (37685835).

Almost surely, 2^75371669 is an apocalyptic number.

It is an amenable number.

75371669 is a deficient number, since it is larger than the sum of its proper divisors (1).

75371669 is an equidigital number, since it uses as much as digits as its factorization.

75371669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140, while the sum is 44.

The square root of 75371669 is about 8681.6858385915. The cubic root of 75371669 is about 422.4118023711.

The spelling of 75371669 in words is "seventy-five million, three hundred seventy-one thousand, six hundred sixty-nine".