75699705 has 16 divisors (see below), whose sum is σ = 127494720. Its totient is φ = 38248128.

The previous prime is 75699697. The next prime is 75699707. The reversal of 75699705 is 50799657.

It is not a de Polignac number, because 75699705 - 2³ = 75699697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75699707) 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 15 ways as a sum of consecutive naturals, for example, 132522 + ... + 133091.

It is an arithmetic number, because the mean of its divisors is an integer number (7968420).

Almost surely, 2^75699705 is an apocalyptic number.

It is an amenable number.

75699705 is a deficient number, since it is larger than the sum of its proper divisors (51795015).

75699705 is a wasteful number, since it uses less digits than its factorization.

75699705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265640.

The product of its (nonzero) digits is 595350, while the sum is 48.

The square root of 75699705 is about 8700.5577407428. The cubic root of 75699705 is about 423.0237287518.

Subtracting from 75699705 its sum of digits (48), we obtain a palindrome (75699657).

The spelling of 75699705 in words is "seventy-five million, six hundred ninety-nine thousand, seven hundred five".