628001071 has 2 divisors, whose sum is σ = 628001072. Its totient is φ = 628001070.

The previous prime is 628000979. The next prime is 628001089. The reversal of 628001071 is 170100826.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 628001071 - 2⁷ = 628000943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628001371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314000535 + 314000536.

It is an arithmetic number, because the mean of its divisors is an integer number (314000536).

Almost surely, 2^628001071 is an apocalyptic number.

628001071 is a deficient number, since it is larger than the sum of its proper divisors (1).

628001071 is an equidigital number, since it uses as much as digits as its factorization.

628001071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 628001071 is about 25059.9495410506. The cubic root of 628001071 is about 856.3542579569.

Adding to 628001071 its reverse (170100826), we get a palindrome (798101897).

The spelling of 628001071 in words is "six hundred twenty-eight million, one thousand, seventy-one".