620213523 has 24 divisors (see below), whose sum is σ = 875099088. Its totient is φ = 390667968.

The previous prime is 620213513. The next prime is 620213527. The reversal of 620213523 is 325312026.

It is not a de Polignac number, because 620213523 - 2¹³ = 620205331 is a prime.

It is a super-2 number, since 2×620213523² = 769329628224143058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 620213493 and 620213502.

It is not an unprimeable number, because it can be changed into a prime (620213527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 706761 + ... + 707637.

It is an arithmetic number, because the mean of its divisors is an integer number (36462462).

Almost surely, 2^620213523 is an apocalyptic number.

620213523 is a deficient number, since it is larger than the sum of its proper divisors (254885565).

620213523 is a wasteful number, since it uses less digits than its factorization.

620213523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571 (or 1552 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 620213523 is about 24904.0864719026. The cubic root of 620213523 is about 852.7997749788.

Adding to 620213523 its reverse (325312026), we get a palindrome (945525549).

The spelling of 620213523 in words is "six hundred twenty million, two hundred thirteen thousand, five hundred twenty-three".