620326577 has 4 divisors (see below), whose sum is σ = 668044020. Its totient is φ = 572609136.

The previous prime is 620326513. The next prime is 620326579. The reversal of 620326577 is 775623026.

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

It can be written as a sum of positive squares in 2 ways, for example, as 290395681 + 329930896 = 17041^2 + 18164^2 .

It is a cyclic number.

It is not a de Polignac number, because 620326577 - 2⁶ = 620326513 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 620326577.

It is not an unprimeable number, because it can be changed into a prime (620326579) 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, 23858702 + ... + 23858727.

It is an arithmetic number, because the mean of its divisors is an integer number (167011005).

Almost surely, 2^620326577 is an apocalyptic number.

It is an amenable number.

620326577 is a deficient number, since it is larger than the sum of its proper divisors (47717443).

620326577 is a wasteful number, since it uses less digits than its factorization.

620326577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47717442.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 620326577 is about 24906.3561566119. The cubic root of 620326577 is about 852.8515886229.

The spelling of 620326577 in words is "six hundred twenty million, three hundred twenty-six thousand, five hundred seventy-seven".