628812967 has 2 divisors, whose sum is σ = 628812968. Its totient is φ = 628812966.

The previous prime is 628812913. The next prime is 628813013. The reversal of 628812967 is 769218826.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 628812967 - 2¹⁵ = 628780199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 628812967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628812907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314406483 + 314406484.

It is an arithmetic number, because the mean of its divisors is an integer number (314406484).

Almost surely, 2^628812967 is an apocalyptic number.

628812967 is a deficient number, since it is larger than the sum of its proper divisors (1).

628812967 is an equidigital number, since it uses as much as digits as its factorization.

628812967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 49.

The square root of 628812967 is about 25076.1433837024. The cubic root of 628812967 is about 856.7231380021.

The spelling of 628812967 in words is "six hundred twenty-eight million, eight hundred twelve thousand, nine hundred sixty-seven".