75768863 has 4 divisors (see below), whose sum is σ = 75786360. Its totient is φ = 75751368.

The previous prime is 75768839. The next prime is 75768871. The reversal of 75768863 is 36886757.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 75768863 - 2¹⁸ = 75506719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75768163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3068 + ... + 12686.

It is an arithmetic number, because the mean of its divisors is an integer number (18946590).

Almost surely, 2^75768863 is an apocalyptic number.

75768863 is a deficient number, since it is larger than the sum of its proper divisors (17497).

75768863 is an equidigital number, since it uses as much as digits as its factorization.

75768863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17496.

The product of its digits is 1693440, while the sum is 50.

The square root of 75768863 is about 8704.5311763472. The cubic root of 75768863 is about 423.1525120385.

The spelling of 75768863 in words is "seventy-five million, seven hundred sixty-eight thousand, eight hundred sixty-three".