672790073 has 2 divisors, whose sum is σ = 672790074. Its totient is φ = 672790072.

The previous prime is 672790049. The next prime is 672790103. The reversal of 672790073 is 370097276.

672790073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 669153424 + 3636649 = 25868^2 + 1907^2 .

It is a cyclic number.

It is not a de Polignac number, because 672790073 - 2⁶ = 672790009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 672790073.

It is not a weakly prime, because it can be changed into another prime (672790673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336395036 + 336395037.

It is an arithmetic number, because the mean of its divisors is an integer number (336395037).

Almost surely, 2^672790073 is an apocalyptic number.

It is an amenable number.

672790073 is a deficient number, since it is larger than the sum of its proper divisors (1).

672790073 is an equidigital number, since it uses as much as digits as its factorization.

672790073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 111132, while the sum is 41.

The square root of 672790073 is about 25938.1971809916. The cubic root of 672790073 is about 876.2469613781.

The spelling of 672790073 in words is "six hundred seventy-two million, seven hundred ninety thousand, seventy-three".