720474823 has 4 divisors (see below), whose sum is σ = 720529528. Its totient is φ = 720420120.

The previous prime is 720474817. The next prime is 720474827. The reversal of 720474823 is 328474027.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 720474823 - 2²⁵ = 686920391 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 (720474827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5788 + ... + 38398.

It is an arithmetic number, because the mean of its divisors is an integer number (180132382).

Almost surely, 2^720474823 is an apocalyptic number.

720474823 is a deficient number, since it is larger than the sum of its proper divisors (54705).

720474823 is a wasteful number, since it uses less digits than its factorization.

720474823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54704.

The product of its (nonzero) digits is 75264, while the sum is 37.

The square root of 720474823 is about 26841.6620759595. The cubic root of 720474823 is about 896.4779313907.

The spelling of 720474823 in words is "seven hundred twenty million, four hundred seventy-four thousand, eight hundred twenty-three".