75780673 has 2 divisors, whose sum is σ = 75780674. Its totient is φ = 75780672.

The previous prime is 75780667. The next prime is 75780737. The reversal of 75780673 is 37608757.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38044224 + 37736449 = 6168^2 + 6143^2 .

It is a cyclic number.

It is not a de Polignac number, because 75780673 - 2¹⁷ = 75649601 is a prime.

It is not a weakly prime, because it can be changed into another prime (75780613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37890336 + 37890337.

It is an arithmetic number, because the mean of its divisors is an integer number (37890337).

Almost surely, 2^75780673 is an apocalyptic number.

It is an amenable number.

75780673 is a deficient number, since it is larger than the sum of its proper divisors (1).

75780673 is an equidigital number, since it uses as much as digits as its factorization.

75780673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 75780673 is about 8705.2095322284. The cubic root of 75780673 is about 423.1744963178.

The spelling of 75780673 in words is "seventy-five million, seven hundred eighty thousand, six hundred seventy-three".