620688326 has 16 divisors (see below), whose sum is σ = 986613696. Its totient is φ = 291847296.

The previous prime is 620688323. The next prime is 620688331. The reversal of 620688326 is 623886026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620688323) 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 in 7 ways as a sum of consecutive naturals, for example, 38240 + ... + 51996.

It is an arithmetic number, because the mean of its divisors is an integer number (61663356).

Almost surely, 2^620688326 is an apocalyptic number.

620688326 is a deficient number, since it is larger than the sum of its proper divisors (365925370).

620688326 is a wasteful number, since it uses less digits than its factorization.

620688326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15103.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 620688326 is about 24913.6172805155. The cubic root of 620688326 is about 853.0173390886.

The spelling of 620688326 in words is "six hundred twenty million, six hundred eighty-eight thousand, three hundred twenty-six".