628040767 has 2 divisors, whose sum is σ = 628040768. Its totient is φ = 628040766.

The previous prime is 628040731. The next prime is 628040789. The reversal of 628040767 is 767040826.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 628040767 - 2²⁷ = 493823039 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628070767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314020383 + 314020384.

It is an arithmetic number, because the mean of its divisors is an integer number (314020384).

Almost surely, 2^628040767 is an apocalyptic number.

628040767 is a deficient number, since it is larger than the sum of its proper divisors (1).

628040767 is an equidigital number, since it uses as much as digits as its factorization.

628040767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 628040767 is about 25060.7415492838. The cubic root of 628040767 is about 856.3723009847.

The spelling of 628040767 in words is "six hundred twenty-eight million, forty thousand, seven hundred sixty-seven".