628963 has 8 divisors (see below), whose sum is σ = 656640. Its totient is φ = 601920.

The previous prime is 628939. The next prime is 628973. The reversal of 628963 is 369826.

It is a happy number.

628963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 628963 - 2¹³ = 620771 is a prime.

It is a Duffinian number.

628963 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (628913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3198 + ... + 3388.

It is an arithmetic number, because the mean of its divisors is an integer number (82080).

2⁶²⁸⁹⁶³ is an apocalyptic number.

628963 is a deficient number, since it is larger than the sum of its proper divisors (27677).

628963 is a wasteful number, since it uses less digits than its factorization.

628963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317.

The product of its digits is 15552, while the sum is 34.

The square root of 628963 is about 793.0718756834. The cubic root of 628963 is about 85.6791269825.

It can be divided in two parts, 62 and 8963, that added together give a square (9025 = 95²).

The spelling of 628963 in words is "six hundred twenty-eight thousand, nine hundred sixty-three".