620064622 has 4 divisors (see below), whose sum is σ = 930096936. Its totient is φ = 310032310.

The previous prime is 620064593. The next prime is 620064623. The reversal of 620064622 is 226460026.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620064623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155016154 + ... + 155016157.

It is an arithmetic number, because the mean of its divisors is an integer number (232524234).

Almost surely, 2^620064622 is an apocalyptic number.

620064622 is a deficient number, since it is larger than the sum of its proper divisors (310032314).

620064622 is a wasteful number, since it uses less digits than its factorization.

620064622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310032313.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 620064622 is about 24901.0968031531. The cubic root of 620064622 is about 852.7315227302.

The spelling of 620064622 in words is "six hundred twenty million, sixty-four thousand, six hundred twenty-two".