628064463 has 16 divisors (see below), whose sum is σ = 903213920. Its totient is φ = 385910784.

The previous prime is 628064443. The next prime is 628064533. The reversal of 628064463 is 364460826.

It is not a de Polignac number, because 628064463 - 2⁸ = 628064207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628064413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14283 + ... + 38211.

It is an arithmetic number, because the mean of its divisors is an integer number (56450870).

Almost surely, 2^628064463 is an apocalyptic number.

628064463 is a deficient number, since it is larger than the sum of its proper divisors (275149457).

628064463 is a wasteful number, since it uses less digits than its factorization.

628064463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24618.

The product of its (nonzero) digits is 165888, while the sum is 39.

The square root of 628064463 is about 25061.2143161500. The cubic root of 628064463 is about 856.3830711682.

The spelling of 628064463 in words is "six hundred twenty-eight million, sixty-four thousand, four hundred sixty-three".