620354311 has 4 divisors (see below), whose sum is σ = 620410032. Its totient is φ = 620298592.

The previous prime is 620354309. The next prime is 620354333. The reversal of 620354311 is 113453026.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 620354311 - 2¹ = 620354309 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 (620354411) 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 3 ways as a sum of consecutive naturals, for example, 4795 + ... + 35548.

It is an arithmetic number, because the mean of its divisors is an integer number (155102508).

Almost surely, 2^620354311 is an apocalyptic number.

620354311 is a deficient number, since it is larger than the sum of its proper divisors (55721).

620354311 is a wasteful number, since it uses less digits than its factorization.

620354311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55720.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 620354311 is about 24906.9129158955. The cubic root of 620354311 is about 852.8642983978.

The spelling of 620354311 in words is "six hundred twenty million, three hundred fifty-four thousand, three hundred eleven".