719953 has 4 divisors (see below), whose sum is σ = 775348. Its totient is φ = 664560.

The previous prime is 719951. The next prime is 719959. The reversal of 719953 is 359917.

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

It can be written as a sum of positive squares in 2 ways, for example, as 425104 + 294849 = 652^2 + 543^2 .

It is not a de Polignac number, because 719953 - 2¹ = 719951 is a prime.

It is the 849-th Hogben number.

It is a Duffinian number.

719953 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (719951) by changing a digit.

It is a nontrivial repunit in base 848.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27678 + ... + 27703.

It is an arithmetic number, because the mean of its divisors is an integer number (193837).

2⁷¹⁹⁹⁵³ is an apocalyptic number.

It is an amenable number.

719953 is a deficient number, since it is larger than the sum of its proper divisors (55395).

719953 is a wasteful number, since it uses less digits than its factorization.

719953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55394.

The product of its digits is 8505, while the sum is 34.

The square root of 719953 is about 848.5004419563. The cubic root of 719953 is about 89.6261446478.

The spelling of 719953 in words is "seven hundred nineteen thousand, nine hundred fifty-three".