627798020 has 12 divisors (see below), whose sum is σ = 1318375884. Its totient is φ = 251119200.

The previous prime is 627798013. The next prime is 627798023. The reversal of 627798020 is 20897726.

It can be written as a sum of positive squares in 2 ways, for example, as 368716804 + 259081216 = 19202^2 + 16096^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (627798023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15694931 + ... + 15694970.

It is an arithmetic number, because the mean of its divisors is an integer number (109864657).

Almost surely, 2^627798020 is an apocalyptic number.

It is an amenable number.

627798020 is an abundant number, since it is smaller than the sum of its proper divisors (690577864).

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

627798020 is a wasteful number, since it uses less digits than its factorization.

627798020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31389910 (or 31389908 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 627798020 is about 25055.8979084766. The cubic root of 627798020 is about 856.2619532670.

The spelling of 627798020 in words is "six hundred twenty-seven million, seven hundred ninety-eight thousand, twenty".