620320297 has 4 divisors (see below), whose sum is σ = 620370900. Its totient is φ = 620269696.

The previous prime is 620320273. The next prime is 620320301. The reversal of 620320297 is 792023026.

620320297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 792023026 = 2 ⋅396011513.

It can be written as a sum of positive squares in 2 ways, for example, as 592240896 + 28079401 = 24336^2 + 5299^2 .

It is a cyclic number.

It is not a de Polignac number, because 620320297 - 2¹¹ = 620318249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620320247) 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, 5973 + ... + 35725.

It is an arithmetic number, because the mean of its divisors is an integer number (155092725).

Almost surely, 2^620320297 is an apocalyptic number.

It is an amenable number.

620320297 is a deficient number, since it is larger than the sum of its proper divisors (50603).

620320297 is a wasteful number, since it uses less digits than its factorization.

620320297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50602.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 620320297 is about 24906.2300840573. The cubic root of 620320297 is about 852.8487106087.

The spelling of 620320297 in words is "six hundred twenty million, three hundred twenty thousand, two hundred ninety-seven".