75001897 has 2 divisors, whose sum is σ = 75001898. Its totient is φ = 75001896.

The previous prime is 75001891. The next prime is 75001907. The reversal of 75001897 is 79810057.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72233001 + 2768896 = 8499^2 + 1664^2 .

It is a cyclic number.

It is not a de Polignac number, because 75001897 - 2¹⁹ = 74477609 is a prime.

It is not a weakly prime, because it can be changed into another prime (75001891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37500948 + 37500949.

It is an arithmetic number, because the mean of its divisors is an integer number (37500949).

Almost surely, 2^75001897 is an apocalyptic number.

It is an amenable number.

75001897 is a deficient number, since it is larger than the sum of its proper divisors (1).

75001897 is an equidigital number, since it uses as much as digits as its factorization.

75001897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 75001897 is about 8660.3635604979. The cubic root of 75001897 is about 421.7198881582.

The spelling of 75001897 in words is "seventy-five million, one thousand, eight hundred ninety-seven".