628967763 has 6 divisors (see below), whose sum is σ = 908509004. Its totient is φ = 419311836.

The previous prime is 628967761. The next prime is 628967777. The reversal of 628967763 is 367769826.

628967763 is a `hidden beast` number, since 628 + 9 + 6 + 7 + 7 + 6 + 3 = 666.

It is not a de Polignac number, because 628967763 - 2¹ = 628967761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628967761) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34942645 + ... + 34942662.

Almost surely, 2^628967763 is an apocalyptic number.

628967763 is a deficient number, since it is larger than the sum of its proper divisors (279541241).

628967763 is a wasteful number, since it uses less digits than its factorization.

628967763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69885313 (or 69885310 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 628967763 is about 25079.2297130514. The cubic root of 628967763 is about 856.7934325842.

The spelling of 628967763 in words is "six hundred twenty-eight million, nine hundred sixty-seven thousand, seven hundred sixty-three".