800079667 has 4 divisors (see below), whose sum is σ = 800775936. Its totient is φ = 799383400.

The previous prime is 800079661. The next prime is 800079677. The reversal of 800079667 is 766970008.

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 800079667 - 2³ = 800079659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (800079661) 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, 346408 + ... + 348709.

It is an arithmetic number, because the mean of its divisors is an integer number (200193984).

Almost surely, 2^800079667 is an apocalyptic number.

800079667 is a deficient number, since it is larger than the sum of its proper divisors (696269).

800079667 is a wasteful number, since it uses less digits than its factorization.

800079667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696268.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 800079667 is about 28285.6795393004. The cubic root of 800079667 is about 928.3485808212.

The spelling of 800079667 in words is "eight hundred million, seventy-nine thousand, six hundred sixty-seven".