798018667 has 4 divisors (see below), whose sum is σ = 801124056. Its totient is φ = 794913280.

The previous prime is 798018659. The next prime is 798018673. The reversal of 798018667 is 766810897.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766810897 = 661 ⋅1160077.

It is a cyclic number.

It is not a de Polignac number, because 798018667 - 2³ = 798018659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (798018367) 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, 1552309 + ... + 1552822.

It is an arithmetic number, because the mean of its divisors is an integer number (200281014).

Almost surely, 2^798018667 is an apocalyptic number.

798018667 is a deficient number, since it is larger than the sum of its proper divisors (3105389).

798018667 is a wasteful number, since it uses less digits than its factorization.

798018667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105388.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 798018667 is about 28249.2241840373. The cubic root of 798018667 is about 927.5507554026.

The spelling of 798018667 in words is "seven hundred ninety-eight million, eighteen thousand, six hundred sixty-seven".