620321206 has 8 divisors (see below), whose sum is σ = 955630080. Its totient is φ = 301777848.

The previous prime is 620321197. The next prime is 620321231. The reversal of 620321206 is 602123026.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×620321206² = 769596797226588872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 4191286 + ... + 4191433.

It is an arithmetic number, because the mean of its divisors is an integer number (119453760).

Almost surely, 2^620321206 is an apocalyptic number.

620321206 is a deficient number, since it is larger than the sum of its proper divisors (335308874).

620321206 is a wasteful number, since it uses less digits than its factorization.

620321206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8382758.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 620321206 is about 24906.2483324968. The cubic root of 620321206 is about 852.8491271887.

The spelling of 620321206 in words is "six hundred twenty million, three hundred twenty-one thousand, two hundred six".