75417997 has 2 divisors, whose sum is σ = 75417998. Its totient is φ = 75417996.

The previous prime is 75417971. The next prime is 75418027. The reversal of 75417997 is 79971457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41615401 + 33802596 = 6451^2 + 5814^2 .

It is a cyclic number.

It is not a de Polignac number, because 75417997 - 2¹⁵ = 75385229 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75417997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75447997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37708998 + 37708999.

It is an arithmetic number, because the mean of its divisors is an integer number (37708999).

Almost surely, 2^75417997 is an apocalyptic number.

It is an amenable number.

75417997 is a deficient number, since it is larger than the sum of its proper divisors (1).

75417997 is an equidigital number, since it uses as much as digits as its factorization.

75417997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 555660, while the sum is 49.

The square root of 75417997 is about 8684.3535741010. The cubic root of 75417997 is about 422.4983312843.

The spelling of 75417997 in words is "seventy-five million, four hundred seventeen thousand, nine hundred ninety-seven".