75117347 has 4 divisors (see below), whose sum is σ = 75234096. Its totient is φ = 75000600.

The previous prime is 75117323. The next prime is 75117359. The reversal of 75117347 is 74371157.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75117347 - 2⁶ = 75117283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75117397) 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, 57404 + ... + 58697.

It is an arithmetic number, because the mean of its divisors is an integer number (18808524).

Almost surely, 2^75117347 is an apocalyptic number.

75117347 is a deficient number, since it is larger than the sum of its proper divisors (116749).

75117347 is a wasteful number, since it uses less digits than its factorization.

75117347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116748.

The product of its digits is 20580, while the sum is 35.

The square root of 75117347 is about 8667.0264220204. The cubic root of 75117347 is about 421.9361609143.

The spelling of 75117347 in words is "seventy-five million, one hundred seventeen thousand, three hundred forty-seven".