672783585 has 16 divisors (see below), whose sum is σ = 1139774976. Its totient is φ = 337710848.

The previous prime is 672783577. The next prime is 672783589. The reversal of 672783585 is 585387276.

It is not a de Polignac number, because 672783585 - 2³ = 672783577 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (672783589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1318929 + ... + 1319438.

It is an arithmetic number, because the mean of its divisors is an integer number (71235936).

Almost surely, 2^672783585 is an apocalyptic number.

It is an amenable number.

672783585 is a deficient number, since it is larger than the sum of its proper divisors (466991391).

672783585 is a wasteful number, since it uses less digits than its factorization.

672783585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2638392.

The product of its digits is 2822400, while the sum is 51.

The square root of 672783585 is about 25938.0721141722. The cubic root of 672783585 is about 876.2441446954.

The spelling of 672783585 in words is "six hundred seventy-two million, seven hundred eighty-three thousand, five hundred eighty-five".