719720 has 32 divisors (see below), whose sum is σ = 1706400. Its totient is φ = 272448.

The previous prime is 719717. The next prime is 719723. The reversal of 719720 is 27917.

It is an interprime number because it is at equal distance from previous prime (719717) and next prime (719723).

It is a self number, because there is not a number n which added to its sum of digits gives 719720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (719723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287 + ... + 1233.

It is an arithmetic number, because the mean of its divisors is an integer number (53325).

2⁷¹⁹⁷²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 719720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (853200).

719720 is an abundant number, since it is smaller than the sum of its proper divisors (986680).

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

719720 is a wasteful number, since it uses less digits than its factorization.

719720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 26.

The square root of 719720 is about 848.3631297976. The cubic root of 719720 is about 89.6164749680.

The spelling of 719720 in words is "seven hundred nineteen thousand, seven hundred twenty".