719990798 has 4 divisors (see below), whose sum is σ = 1079986200. Its totient is φ = 359995398.

The previous prime is 719990773. The next prime is 719990809. The reversal of 719990798 is 897099917.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 179997698 + ... + 179997701.

It is an arithmetic number, because the mean of its divisors is an integer number (269996550).

Almost surely, 2^719990798 is an apocalyptic number.

719990798 is a deficient number, since it is larger than the sum of its proper divisors (359995402).

719990798 is a wasteful number, since it uses less digits than its factorization.

719990798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359995401.

The product of its (nonzero) digits is 2571912, while the sum is 59.

The square root of 719990798 is about 26832.6442603035. The cubic root of 719990798 is about 896.2771309723.

The spelling of 719990798 in words is "seven hundred nineteen million, nine hundred ninety thousand, seven hundred ninety-eight".