620523343 has 4 divisors (see below), whose sum is σ = 676934568. Its totient is φ = 564112120.

The previous prime is 620523331. The next prime is 620523367. The reversal of 620523343 is 343325026.

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

It is not a de Polignac number, because 620523343 - 2²¹ = 618426191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620553343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28205596 + ... + 28205617.

It is an arithmetic number, because the mean of its divisors is an integer number (169233642).

Almost surely, 2^620523343 is an apocalyptic number.

620523343 is a deficient number, since it is larger than the sum of its proper divisors (56411225).

620523343 is a wasteful number, since it uses less digits than its factorization.

620523343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56411224.

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 620523343 is about 24910.3059595823. The cubic root of 620523343 is about 852.9417532028.

Adding to 620523343 its reverse (343325026), we get a palindrome (963848369).

The spelling of 620523343 in words is "six hundred twenty million, five hundred twenty-three thousand, three hundred forty-three".