672831433 has 2 divisors, whose sum is σ = 672831434. Its totient is φ = 672831432.

The previous prime is 672831391. The next prime is 672831451. The reversal of 672831433 is 334138276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 422179209 + 250652224 = 20547^2 + 15832^2 .

It is a cyclic number.

It is not a de Polignac number, because 672831433 - 2¹³ = 672823241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 672831392 and 672831401.

It is not a weakly prime, because it can be changed into another prime (672831833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336415716 + 336415717.

It is an arithmetic number, because the mean of its divisors is an integer number (336415717).

Almost surely, 2^672831433 is an apocalyptic number.

It is an amenable number.

672831433 is a deficient number, since it is larger than the sum of its proper divisors (1).

672831433 is an equidigital number, since it uses as much as digits as its factorization.

672831433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 37.

The square root of 672831433 is about 25938.9944485132. The cubic root of 672831433 is about 876.2649168708.

The spelling of 672831433 in words is "six hundred seventy-two million, eight hundred thirty-one thousand, four hundred thirty-three".