720469673 has 32 divisors (see below), whose sum is σ = 953856000. Its totient is φ = 526844160.

The previous prime is 720469657. The next prime is 720469681. The reversal of 720469673 is 376964027.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 720469673 - 2⁴ = 720469657 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720469643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 652640 + ... + 653742.

It is an arithmetic number, because the mean of its divisors is an integer number (29808000).

Almost surely, 2^720469673 is an apocalyptic number.

It is an amenable number.

720469673 is a deficient number, since it is larger than the sum of its proper divisors (233386327).

720469673 is a wasteful number, since it uses less digits than its factorization.

720469673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637.

The product of its (nonzero) digits is 381024, while the sum is 44.

The square root of 720469673 is about 26841.5661428315. The cubic root of 720469673 is about 896.4757953585.

The spelling of 720469673 in words is "seven hundred twenty million, four hundred sixty-nine thousand, six hundred seventy-three".