620671212 has 72 divisors (see below), whose sum is σ = 1850913792. Its totient is φ = 171612000.

The previous prime is 620671201. The next prime is 620671213. The reversal of 620671212 is 212176026.

It is not an unprimeable number, because it can be changed into a prime (620671213) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 31914 + ... + 47537.

It is an arithmetic number, because the mean of its divisors is an integer number (25707136).

Almost surely, 2^620671212 is an apocalyptic number.

620671212 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

620671212 is an abundant number, since it is smaller than the sum of its proper divisors (1230242580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620671212 is a wasteful number, since it uses less digits than its factorization.

620671212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79499 (or 79494 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 620671212 is about 24913.2738113641. The cubic root of 620671212 is about 853.0094990437.

The spelling of 620671212 in words is "six hundred twenty million, six hundred seventy-one thousand, two hundred twelve".