606221864 has 24 divisors (see below), whose sum is σ = 1174530330. Its totient is φ = 293329440.

The previous prime is 606221831. The next prime is 606221899. The reversal of 606221864 is 468122606.

It can be written as a sum of positive squares in only one way, i.e., 599760100 + 6461764 = 24490^2 + 2542^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31739 + ... + 47114.

Almost surely, 2^606221864 is an apocalyptic number.

It is an amenable number.

606221864 is a deficient number, since it is larger than the sum of its proper divisors (568308466).

606221864 is a wasteful number, since it uses less digits than its factorization.

606221864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78921 (or 78886 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 606221864 is about 24621.5731422669. The cubic root of 606221864 is about 846.3380474605.

The spelling of 606221864 in words is "six hundred six million, two hundred twenty-one thousand, eight hundred sixty-four".