628028701 has 2 divisors, whose sum is σ = 628028702. Its totient is φ = 628028700.

The previous prime is 628028699. The next prime is 628028719. The reversal of 628028701 is 107820826.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 627552601 + 476100 = 25051^2 + 690^2 .

It is a cyclic number.

It is not a de Polignac number, because 628028701 - 2¹ = 628028699 is a prime.

It is a super-3 number, since 3×628028701³ (a number of 27 digits) contains 333 as substring.

Together with 628028699, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628028741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314014350 + 314014351.

It is an arithmetic number, because the mean of its divisors is an integer number (314014351).

Almost surely, 2^628028701 is an apocalyptic number.

It is an amenable number.

628028701 is a deficient number, since it is larger than the sum of its proper divisors (1).

628028701 is an equidigital number, since it uses as much as digits as its factorization.

628028701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 628028701 is about 25060.5008130324. The cubic root of 628028701 is about 856.3668167047.

The spelling of 628028701 in words is "six hundred twenty-eight million, twenty-eight thousand, seven hundred one".