800668755 has 48 divisors (see below), whose sum is σ = 1453847616. Its totient is φ = 406855680.

The previous prime is 800668751. The next prime is 800668783. The reversal of 800668755 is 557866008.

It is not a de Polignac number, because 800668755 - 2² = 800668751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 800668755.

It is not an unprimeable number, because it can be changed into a prime (800668751) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 289459 + ... + 292211.

It is an arithmetic number, because the mean of its divisors is an integer number (30288492).

Almost surely, 2^800668755 is an apocalyptic number.

800668755 is a deficient number, since it is larger than the sum of its proper divisors (653178861).

800668755 is a wasteful number, since it uses less digits than its factorization.

800668755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3068 (or 3065 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 800668755 is about 28296.0908077423. The cubic root of 800668755 is about 928.5763684888.

The spelling of 800668755 in words is "eight hundred million, six hundred sixty-eight thousand, seven hundred fifty-five".