628300273 has 2 divisors, whose sum is σ = 628300274. Its totient is φ = 628300272.

The previous prime is 628300261. The next prime is 628300291. The reversal of 628300273 is 372003826.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 625400064 + 2900209 = 25008^2 + 1703^2 .

It is a cyclic number.

It is not a de Polignac number, because 628300273 - 2²⁵ = 594745841 is a prime.

It is a super-2 number, since 2×628300273² = 789522466103749058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (628300073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314150136 + 314150137.

It is an arithmetic number, because the mean of its divisors is an integer number (314150137).

Almost surely, 2^628300273 is an apocalyptic number.

It is an amenable number.

628300273 is a deficient number, since it is larger than the sum of its proper divisors (1).

628300273 is an equidigital number, since it uses as much as digits as its factorization.

628300273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 628300273 is about 25065.9185548824. The cubic root of 628300273 is about 856.4902355521.

The spelling of 628300273 in words is "six hundred twenty-eight million, three hundred thousand, two hundred seventy-three".