799521818 has 8 divisors (see below), whose sum is σ = 1199670912. Its totient is φ = 399631516.

The previous prime is 799521817. The next prime is 799521823. The reversal of 799521818 is 818125997.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (799521817) 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, 56780 + ... + 69447.

It is an arithmetic number, because the mean of its divisors is an integer number (149958864).

Almost surely, 2^799521818 is an apocalyptic number.

799521818 is a deficient number, since it is larger than the sum of its proper divisors (400149094).

799521818 is a wasteful number, since it uses less digits than its factorization.

799521818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129396.

The product of its digits is 362880, while the sum is 50.

The square root of 799521818 is about 28275.8168405441. The cubic root of 799521818 is about 928.1327695057.

The spelling of 799521818 in words is "seven hundred ninety-nine million, five hundred twenty-one thousand, eight hundred eighteen".