719972823 has 4 divisors (see below), whose sum is σ = 959963768. Its totient is φ = 479981880.

The previous prime is 719972801. The next prime is 719972843. The reversal of 719972823 is 328279917.

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

It is not a de Polignac number, because 719972823 - 2¹² = 719968727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (719972843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119995468 + ... + 119995473.

It is an arithmetic number, because the mean of its divisors is an integer number (239990942).

Almost surely, 2^719972823 is an apocalyptic number.

719972823 is a deficient number, since it is larger than the sum of its proper divisors (239990945).

719972823 is a wasteful number, since it uses less digits than its factorization.

719972823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239990944.

The product of its digits is 381024, while the sum is 48.

The square root of 719972823 is about 26832.3093117234. The cubic root of 719972823 is about 896.2696722124.

The spelling of 719972823 in words is "seven hundred nineteen million, nine hundred seventy-two thousand, eight hundred twenty-three".