799898420 has 24 divisors (see below), whose sum is σ = 1682003400. Its totient is φ = 319537152.

The previous prime is 799898389. The next prime is 799898431. The reversal of 799898420 is 24898997.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 283518244 + 516380176 = 16838^2 + 22724^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10625 + ... + 41384.

It is an arithmetic number, because the mean of its divisors is an integer number (70083475).

Almost surely, 2^799898420 is an apocalyptic number.

It is an amenable number.

799898420 is an abundant number, since it is smaller than the sum of its proper divisors (882104980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

799898420 is a wasteful number, since it uses less digits than its factorization.

799898420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52787 (or 52785 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 56.

The square root of 799898420 is about 28282.4754927853. The cubic root of 799898420 is about 928.2784740100.

The spelling of 799898420 in words is "seven hundred ninety-nine million, eight hundred ninety-eight thousand, four hundred twenty".