628084019 has 2 divisors, whose sum is σ = 628084020. Its totient is φ = 628084018.

The previous prime is 628084013. The next prime is 628084027. The reversal of 628084019 is 910480826.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-628084019 is a prime.

It is a super-2 number, since 2×628084019² = 788979069846384722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (628084013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314042009 + 314042010.

It is an arithmetic number, because the mean of its divisors is an integer number (314042010).

Almost surely, 2^628084019 is an apocalyptic number.

628084019 is a deficient number, since it is larger than the sum of its proper divisors (1).

628084019 is an equidigital number, since it uses as much as digits as its factorization.

628084019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 628084019 is about 25061.6044777664. The cubic root of 628084019 is about 856.3919594562.

The spelling of 628084019 in words is "six hundred twenty-eight million, eighty-four thousand, nineteen".