755999863 has 4 divisors (see below), whose sum is σ = 768813480. Its totient is φ = 743186248.

The previous prime is 755999837. The next prime is 755999879. The reversal of 755999863 is 368999557.

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 755999863 - 2⁵ = 755999831 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 (755999063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6406720 + ... + 6406837.

It is an arithmetic number, because the mean of its divisors is an integer number (192203370).

Almost surely, 2^755999863 is an apocalyptic number.

755999863 is a deficient number, since it is larger than the sum of its proper divisors (12813617).

755999863 is a wasteful number, since it uses less digits than its factorization.

755999863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12813616.

The product of its digits is 18370800, while the sum is 61.

The square root of 755999863 is about 27495.4516784140. The cubic root of 755999863 is about 910.9766365346.

The spelling of 755999863 in words is "seven hundred fifty-five million, nine hundred ninety-nine thousand, eight hundred sixty-three".