75663743 has 4 divisors (see below), whose sum is σ = 75733080. Its totient is φ = 75594408.

The previous prime is 75663727. The next prime is 75663769. The reversal of 75663743 is 34736657.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34736657 = 2293 ⋅15149.

It is a cyclic number.

It is not a de Polignac number, because 75663743 - 2⁴ = 75663727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75663743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75663793) 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 in 3 ways as a sum of consecutive naturals, for example, 33005 + ... + 35222.

It is an arithmetic number, because the mean of its divisors is an integer number (18933270).

Almost surely, 2^75663743 is an apocalyptic number.

75663743 is a deficient number, since it is larger than the sum of its proper divisors (69337).

75663743 is a wasteful number, since it uses less digits than its factorization.

75663743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69336.

The product of its digits is 317520, while the sum is 41.

The square root of 75663743 is about 8698.4908461181. The cubic root of 75663743 is about 422.9567307409.

The spelling of 75663743 in words is "seventy-five million, six hundred sixty-three thousand, seven hundred forty-three".