672838741 has 6 divisors (see below), whose sum is σ = 689651426. Its totient is φ = 656426400.

The previous prime is 672838739. The next prime is 672838781. The reversal of 672838741 is 147838276.

It can be written as a sum of positive squares in 3 ways, for example, as 127803025 + 545035716 = 11305^2 + 23346^2 .

It is not a de Polignac number, because 672838741 - 2¹ = 672838739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 672838691 and 672838700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672838781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 198450 + ... + 201811.

Almost surely, 2^672838741 is an apocalyptic number.

It is an amenable number.

672838741 is a deficient number, since it is larger than the sum of its proper divisors (16812685).

672838741 is an equidigital number, since it uses as much as digits as its factorization.

672838741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400343 (or 400302 counting only the distinct ones).

The product of its digits is 451584, while the sum is 46.

The square root of 672838741 is about 25939.1353171227. The cubic root of 672838741 is about 876.2680893944.

The spelling of 672838741 in words is "six hundred seventy-two million, eight hundred thirty-eight thousand, seven hundred forty-one".