75660347 has 4 divisors (see below), whose sum is σ = 86468976. Its totient is φ = 64851720.

The previous prime is 75660331. The next prime is 75660359. The reversal of 75660347 is 74306657.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74306657 = 1847 ⋅40231.

It is a cyclic number.

It is not a de Polignac number, because 75660347 - 2⁴ = 75660331 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 75660347.

It is not an unprimeable number, because it can be changed into a prime (75660307) 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, 5404304 + ... + 5404317.

It is an arithmetic number, because the mean of its divisors is an integer number (21617244).

Almost surely, 2^75660347 is an apocalyptic number.

75660347 is a deficient number, since it is larger than the sum of its proper divisors (10808629).

75660347 is a wasteful number, since it uses less digits than its factorization.

75660347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10808628.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 75660347 is about 8698.2956376522. The cubic root of 75660347 is about 422.9504028200.

The spelling of 75660347 in words is "seventy-five million, six hundred sixty thousand, three hundred forty-seven".