620891060 has 12 divisors (see below), whose sum is σ = 1303871268. Its totient is φ = 248356416.

The previous prime is 620891059. The next prime is 620891071. The reversal of 620891060 is 60198026.

It can be written as a sum of positive squares in 2 ways, for example, as 202606756 + 418284304 = 14234^2 + 20452^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15522257 + ... + 15522296.

It is an arithmetic number, because the mean of its divisors is an integer number (108655939).

Almost surely, 2^620891060 is an apocalyptic number.

It is an amenable number.

620891060 is an abundant number, since it is smaller than the sum of its proper divisors (682980208).

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

620891060 is a wasteful number, since it uses less digits than its factorization.

620891060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31044562 (or 31044560 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 620891060 is about 24917.6856870778. The cubic root of 620891060 is about 853.1102020091.

The spelling of 620891060 in words is "six hundred twenty million, eight hundred ninety-one thousand, sixty".