621070112 has 96 divisors (see below), whose sum is σ = 1421410032. Its totient is φ = 264536064.

The previous prime is 621070111. The next prime is 621070139. The reversal of 621070112 is 211070126.

It can be written as a sum of positive squares in 8 ways, for example, as 294328336 + 326741776 = 17156^2 + 18076^2 .

It is not an unprimeable number, because it can be changed into a prime (621070111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373988 + ... + 375644.

Almost surely, 2^621070112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 621070112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (710705016).

621070112 is an abundant number, since it is smaller than the sum of its proper divisors (800339920).

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

621070112 is a wasteful number, since it uses less digits than its factorization.

621070112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750 (or 1742 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 621070112 is about 24921.2782978723. The cubic root of 621070112 is about 853.1922005092.

The spelling of 621070112 in words is "six hundred twenty-one million, seventy thousand, one hundred twelve".