75712705 has 4 divisors (see below), whose sum is σ = 90855252. Its totient is φ = 60570160.

The previous prime is 75712697. The next prime is 75712717. The reversal of 75712705 is 50721757.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23309584 + 52403121 = 4828^2 + 7239^2 .

It is not a de Polignac number, because 75712705 - 2³ = 75712697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7571266 + ... + 7571275.

It is an arithmetic number, because the mean of its divisors is an integer number (22713813).

Almost surely, 2^75712705 is an apocalyptic number.

It is an amenable number.

75712705 is a deficient number, since it is larger than the sum of its proper divisors (15142547).

75712705 is a wasteful number, since it uses less digits than its factorization.

75712705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15142546.

The product of its (nonzero) digits is 17150, while the sum is 34.

The square root of 75712705 is about 8701.3047872144. The cubic root of 75712705 is about 423.0479428210.

The spelling of 75712705 in words is "seventy-five million, seven hundred twelve thousand, seven hundred five".