628748011 has 2 divisors, whose sum is σ = 628748012. Its totient is φ = 628748010.

The previous prime is 628747979. The next prime is 628748023. The reversal of 628748011 is 110847826.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 628748011 - 2⁵ = 628747979 is a prime.

It is a super-2 number, since 2×628748011² = 790648122672912242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (628748311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314374005 + 314374006.

It is an arithmetic number, because the mean of its divisors is an integer number (314374006).

Almost surely, 2^628748011 is an apocalyptic number.

628748011 is a deficient number, since it is larger than the sum of its proper divisors (1).

628748011 is an equidigital number, since it uses as much as digits as its factorization.

628748011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 628748011 is about 25074.8481750139. The cubic root of 628748011 is about 856.6936373252.

The spelling of 628748011 in words is "six hundred twenty-eight million, seven hundred forty-eight thousand, eleven".