672784329 has 16 divisors (see below), whose sum is σ = 1028986880. Its totient is φ = 383026320.

The previous prime is 672784327. The next prime is 672784349. The reversal of 672784329 is 923487276.

It is not a de Polignac number, because 672784329 - 2¹ = 672784327 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (672784327) 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, 53419 + ... + 64800.

It is an arithmetic number, because the mean of its divisors is an integer number (64311680).

Almost surely, 2^672784329 is an apocalyptic number.

It is an amenable number.

672784329 is a deficient number, since it is larger than the sum of its proper divisors (356202551).

672784329 is a wasteful number, since it uses less digits than its factorization.

672784329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118500.

The product of its digits is 1016064, while the sum is 48.

The square root of 672784329 is about 25938.0864560206. The cubic root of 672784329 is about 876.2444676944.

The spelling of 672784329 in words is "six hundred seventy-two million, seven hundred eighty-four thousand, three hundred twenty-nine".