75664763 has 4 divisors (see below), whose sum is σ = 76129128. Its totient is φ = 75200400.

The previous prime is 75664751. The next prime is 75664777. The reversal of 75664763 is 36746657.

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 75664763 - 2⁴ = 75664747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75664793) 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, 231938 + ... + 232263.

It is an arithmetic number, because the mean of its divisors is an integer number (19032282).

Almost surely, 2^75664763 is an apocalyptic number.

75664763 is a deficient number, since it is larger than the sum of its proper divisors (464365).

75664763 is a wasteful number, since it uses less digits than its factorization.

75664763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464364.

The product of its digits is 635040, while the sum is 44.

The square root of 75664763 is about 8698.5494767806. The cubic root of 75664763 is about 422.9586313162.

The spelling of 75664763 in words is "seventy-five million, six hundred sixty-four thousand, seven hundred sixty-three".