719966 has 8 divisors (see below), whose sum is σ = 1163064. Its totient is φ = 332280.

The previous prime is 719959. The next prime is 719981. The reversal of 719966 is 669917.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 719966.

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 in 3 ways as a sum of consecutive naturals, for example, 13820 + ... + 13871.

It is an arithmetic number, because the mean of its divisors is an integer number (145383).

2⁷¹⁹⁹⁶⁶ is an apocalyptic number.

719966 is a deficient number, since it is larger than the sum of its proper divisors (443098).

719966 is a wasteful number, since it uses less digits than its factorization.

719966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27706.

The product of its digits is 20412, while the sum is 38.

The square root of 719966 is about 848.5081024952. The cubic root of 719966 is about 89.6266840963.

The spelling of 719966 in words is "seven hundred nineteen thousand, nine hundred sixty-six".