427221606 has 16 divisors (see below), whose sum is σ = 976506624. Its totient is φ = 122063304.

The previous prime is 427221601. The next prime is 427221653. The reversal of 427221606 is 606122724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427221601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5085930 + ... + 5086013.

It is an arithmetic number, because the mean of its divisors is an integer number (61031664).

Almost surely, 2^427221606 is an apocalyptic number.

427221606 is an abundant number, since it is smaller than the sum of its proper divisors (549285018).

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

427221606 is a wasteful number, since it uses less digits than its factorization.

427221606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10171955.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 427221606 is about 20669.3397572346. The cubic root of 427221606 is about 753.1550678950.

It can be divided in two parts, 4272 and 21606, that added together give a triangular number (25878 = T₂₂₇).

The spelling of 427221606 in words is "four hundred twenty-seven million, two hundred twenty-one thousand, six hundred six".