719980 has 12 divisors (see below), whose sum is σ = 1512000. Its totient is φ = 287984.

The previous prime is 719959. The next prime is 719981. The reversal of 719980 is 89917.

It is not an unprimeable number, because it can be changed into a prime (719981) by changing a digit.

719980 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, 17980 + ... + 18019.

It is an arithmetic number, because the mean of its divisors is an integer number (126000).

2⁷¹⁹⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

719980 is an abundant number, since it is smaller than the sum of its proper divisors (792020).

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

719980 is a wasteful number, since it uses less digits than its factorization.

719980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36008 (or 36006 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 719980 is about 848.5163522290. The cubic root of 719980 is about 89.6272650337.

The spelling of 719980 in words is "seven hundred nineteen thousand, nine hundred eighty".