620433601 has 4 divisors (see below), whose sum is σ = 629693872. Its totient is φ = 611173332.

The previous prime is 620433587. The next prime is 620433629. The reversal of 620433601 is 106334026.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 106334026 = 2 ⋅53167013.

It is a cyclic number.

It is not a de Polignac number, because 620433601 - 2⁹ = 620433089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620433641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4630035 + ... + 4630168.

It is an arithmetic number, because the mean of its divisors is an integer number (157423468).

Almost surely, 2^620433601 is an apocalyptic number.

It is an amenable number.

620433601 is a deficient number, since it is larger than the sum of its proper divisors (9260271).

620433601 is an equidigital number, since it uses as much as digits as its factorization.

620433601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9260270.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 620433601 is about 24908.5045918056. The cubic root of 620433601 is about 852.9006328646.

Adding to 620433601 its reverse (106334026), we get a palindrome (726767627).

The spelling of 620433601 in words is "six hundred twenty million, four hundred thirty-three thousand, six hundred one".