620963 has 8 divisors (see below), whose sum is σ = 726528. Its totient is φ = 519624.

The previous prime is 620957. The next prime is 620981. The reversal of 620963 is 369026.

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

It is not a de Polignac number, because 620963 - 2⁴ = 620947 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (620933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731 + ... + 1332.

It is an arithmetic number, because the mean of its divisors is an integer number (90816).

2⁶²⁰⁹⁶³ is an apocalyptic number.

620963 is a deficient number, since it is larger than the sum of its proper divisors (105565).

620963 is a wasteful number, since it uses less digits than its factorization.

620963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 620963 is about 788.0120557453. The cubic root of 620963 is about 85.3143149484.

Adding to 620963 its reverse (369026), we get a palindrome (989989).

The spelling of 620963 in words is "six hundred twenty thousand, nine hundred sixty-three".