719998 has 8 divisors (see below), whose sum is σ = 1083600. Its totient is φ = 358800.

The previous prime is 719989. The next prime is 720007. The reversal of 719998 is 899917.

It is an interprime number because it is at equal distance from previous prime (719989) and next prime (720007).

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

It is a congruent number.

It is an unprimeable number.

719998 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898 + ... + 1498.

It is an arithmetic number, because the mean of its divisors is an integer number (135450).

2⁷¹⁹⁹⁹⁸ is an apocalyptic number.

719998 is a deficient number, since it is larger than the sum of its proper divisors (363602).

719998 is a wasteful number, since it uses less digits than its factorization.

719998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202.

The product of its digits is 40824, while the sum is 43.

The square root of 719998 is about 848.5269589117. The cubic root of 719998 is about 89.6280119421.

The spelling of 719998 in words is "seven hundred nineteen thousand, nine hundred ninety-eight".