75897973 has 2 divisors, whose sum is σ = 75897974. Its totient is φ = 75897972.

The previous prime is 75897949. The next prime is 75897977. The reversal of 75897973 is 37979857.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40934404 + 34963569 = 6398^2 + 5913^2 .

It is an emirp because it is prime and its reverse (37979857) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75897973 - 2²¹ = 73800821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75897977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37948986 + 37948987.

It is an arithmetic number, because the mean of its divisors is an integer number (37948987).

Almost surely, 2^75897973 is an apocalyptic number.

It is an amenable number.

75897973 is a deficient number, since it is larger than the sum of its proper divisors (1).

75897973 is an equidigital number, since it uses as much as digits as its factorization.

75897973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3333960, while the sum is 55.

The square root of 75897973 is about 8711.9442720899. The cubic root of 75897973 is about 423.3927260102.

The spelling of 75897973 in words is "seventy-five million, eight hundred ninety-seven thousand, nine hundred seventy-three".