75660461 has 2 divisors, whose sum is σ = 75660462. Its totient is φ = 75660460.

The previous prime is 75660437. The next prime is 75660509. The reversal of 75660461 is 16406657.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41203561 + 34456900 = 6419^2 + 5870^2 .

It is a cyclic number.

It is not a de Polignac number, because 75660461 - 2¹⁸ = 75398317 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75660161) 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, 37830230 + 37830231.

It is an arithmetic number, because the mean of its divisors is an integer number (37830231).

Almost surely, 2^75660461 is an apocalyptic number.

It is an amenable number.

75660461 is a deficient number, since it is larger than the sum of its proper divisors (1).

75660461 is an equidigital number, since it uses as much as digits as its factorization.

75660461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 75660461 is about 8698.3021906577. The cubic root of 75660461 is about 422.9506152444.

The spelling of 75660461 in words is "seventy-five million, six hundred sixty thousand, four hundred sixty-one".