672128498 has 8 divisors (see below), whose sum is σ = 1032782940. Its totient is φ = 327867520.

The previous prime is 672128497. The next prime is 672128503. The reversal of 672128498 is 894821276.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 481495249 + 190633249 = 21943^2 + 13807^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (672128491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4098263 + ... + 4098426.

Almost surely, 2^672128498 is an apocalyptic number.

672128498 is a deficient number, since it is larger than the sum of its proper divisors (360654442).

672128498 is a wasteful number, since it uses less digits than its factorization.

672128498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8196732.

The product of its digits is 387072, while the sum is 47.

The square root of 672128498 is about 25925.4411341447. The cubic root of 672128498 is about 875.9596537300.

The spelling of 672128498 in words is "six hundred seventy-two million, one hundred twenty-eight thousand, four hundred ninety-eight".