798999945 has 8 divisors (see below), whose sum is σ = 1278399936. Its totient is φ = 426133296.

The previous prime is 798999931. The next prime is 798999947. The reversal of 798999945 is 549999897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 798999945 - 2⁸ = 798999689 is a prime.

It is a super-2 number, since 2×798999945² = 1276801824220006050, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 798999945.

It is not an unprimeable number, because it can be changed into a prime (798999947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26633317 + ... + 26633346.

It is an arithmetic number, because the mean of its divisors is an integer number (159799992).

Almost surely, 2^798999945 is an apocalyptic number.

It is an amenable number.

798999945 is a deficient number, since it is larger than the sum of its proper divisors (479399991).

798999945 is a wasteful number, since it uses less digits than its factorization.

798999945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53266671.

The product of its digits is 66134880, while the sum is 69.

The square root of 798999945 is about 28266.5870773251. The cubic root of 798999945 is about 927.9307850831.

The spelling of 798999945 in words is "seven hundred ninety-eight million, nine hundred ninety-nine thousand, nine hundred forty-five".