628735711 has 2 divisors, whose sum is σ = 628735712. Its totient is φ = 628735710.

The previous prime is 628735703. The next prime is 628735717. The reversal of 628735711 is 117537826.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 628735711 - 2³ = 628735703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628735717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314367855 + 314367856.

It is an arithmetic number, because the mean of its divisors is an integer number (314367856).

Almost surely, 2^628735711 is an apocalyptic number.

628735711 is a deficient number, since it is larger than the sum of its proper divisors (1).

628735711 is an equidigital number, since it uses as much as digits as its factorization.

628735711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 40.

The square root of 628735711 is about 25074.6029081220. The cubic root of 628735711 is about 856.6880508792.

The spelling of 628735711 in words is "six hundred twenty-eight million, seven hundred thirty-five thousand, seven hundred eleven".