75000817 has 2 divisors, whose sum is σ = 75000818. Its totient is φ = 75000816.

The previous prime is 75000799. The next prime is 75000823. The reversal of 75000817 is 71800057.

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., 64786401 + 10214416 = 8049^2 + 3196^2 .

It is a cyclic number.

It is not a de Polignac number, because 75000817 - 2¹¹ = 74998769 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75000017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37500408 + 37500409.

It is an arithmetic number, because the mean of its divisors is an integer number (37500409).

Almost surely, 2^75000817 is an apocalyptic number.

It is an amenable number.

75000817 is a deficient number, since it is larger than the sum of its proper divisors (1).

75000817 is an equidigital number, since it uses as much as digits as its factorization.

75000817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 75000817 is about 8660.3012072329. The cubic root of 75000817 is about 421.7178639442.

The spelling of 75000817 in words is "seventy-five million, eight hundred seventeen", and thus it is an aban number.