620439627 has 4 divisors (see below), whose sum is σ = 827252840. Its totient is φ = 413626416.

The previous prime is 620439581. The next prime is 620439637. The reversal of 620439627 is 726934026.

620439627 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.

It is not a de Polignac number, because 620439627 - 2⁶ = 620439563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620439637) 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, 103406602 + ... + 103406607.

It is an arithmetic number, because the mean of its divisors is an integer number (206813210).

Almost surely, 2^620439627 is an apocalyptic number.

620439627 is a deficient number, since it is larger than the sum of its proper divisors (206813213).

620439627 is a wasteful number, since it uses less digits than its factorization.

620439627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206813212.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 620439627 is about 24908.6255542131. The cubic root of 620439627 is about 852.9033941391.

The spelling of 620439627 in words is "six hundred twenty million, four hundred thirty-nine thousand, six hundred twenty-seven".