620763503 has 4 divisors (see below), whose sum is σ = 621723600. Its totient is φ = 619803408.

The previous prime is 620763487. The next prime is 620763527. The reversal of 620763503 is 305367026.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 620763503 - 2⁴ = 620763487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 620763503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620763553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479078 + ... + 480371.

It is an arithmetic number, because the mean of its divisors is an integer number (155430900).

Almost surely, 2^620763503 is an apocalyptic number.

620763503 is a deficient number, since it is larger than the sum of its proper divisors (960097).

620763503 is an equidigital number, since it uses as much as digits as its factorization.

620763503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960096.

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 620763503 is about 24915.1259880419. The cubic root of 620763503 is about 853.0517764989.

The spelling of 620763503 in words is "six hundred twenty million, seven hundred sixty-three thousand, five hundred three".