628851011 has 2 divisors, whose sum is σ = 628851012. Its totient is φ = 628851010.

The previous prime is 628850983. The next prime is 628851031. The reversal of 628851011 is 110158826.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 628851011 - 2¹⁸ = 628588867 is a prime.

It is not a weakly prime, because it can be changed into another prime (628851031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314425505 + 314425506.

It is an arithmetic number, because the mean of its divisors is an integer number (314425506).

Almost surely, 2^628851011 is an apocalyptic number.

628851011 is a deficient number, since it is larger than the sum of its proper divisors (1).

628851011 is an equidigital number, since it uses as much as digits as its factorization.

628851011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 32.

The square root of 628851011 is about 25076.9019418269. The cubic root of 628851011 is about 856.7404152740.

The spelling of 628851011 in words is "six hundred twenty-eight million, eight hundred fifty-one thousand, eleven".