672428873 has 2 divisors, whose sum is σ = 672428874. Its totient is φ = 672428872.

The previous prime is 672428849. The next prime is 672428893. The reversal of 672428873 is 378824276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 388405264 + 284023609 = 19708^2 + 16853^2 .

It is a cyclic number.

It is not a de Polignac number, because 672428873 - 2¹⁰ = 672427849 is a prime.

It is not a weakly prime, because it can be changed into another prime (672428833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336214436 + 336214437.

It is an arithmetic number, because the mean of its divisors is an integer number (336214437).

Almost surely, 2^672428873 is an apocalyptic number.

It is an amenable number.

672428873 is a deficient number, since it is larger than the sum of its proper divisors (1).

672428873 is an equidigital number, since it uses as much as digits as its factorization.

672428873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 47.

The square root of 672428873 is about 25931.2335418121. The cubic root of 672428873 is about 876.0901234223.

The spelling of 672428873 in words is "six hundred seventy-two million, four hundred twenty-eight thousand, eight hundred seventy-three".