628492723 has 2 divisors, whose sum is σ = 628492724. Its totient is φ = 628492722.

The previous prime is 628492663. The next prime is 628492751. The reversal of 628492723 is 327294826.

628492723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 628492723 - 2²¹ = 626395571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 628492723.

It is not a weakly prime, because it can be changed into another prime (628492793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314246361 + 314246362.

It is an arithmetic number, because the mean of its divisors is an integer number (314246362).

Almost surely, 2^628492723 is an apocalyptic number.

628492723 is a deficient number, since it is larger than the sum of its proper divisors (1).

628492723 is an equidigital number, since it uses as much as digits as its factorization.

628492723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 43.

The square root of 628492723 is about 25069.7571388316. The cubic root of 628492723 is about 856.5776750171.

The spelling of 628492723 in words is "six hundred twenty-eight million, four hundred ninety-two thousand, seven hundred twenty-three".