427221598 has 16 divisors (see below), whose sum is σ = 656384256. Its totient is φ = 208436760.

The previous prime is 427221589. The next prime is 427221601. The reversal of 427221598 is 895122724.

It is a self number, because there is not a number n which added to its sum of digits gives 427221598.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120633 + ... + 124123.

It is an arithmetic number, because the mean of its divisors is an integer number (41024016).

Almost surely, 2^427221598 is an apocalyptic number.

427221598 is a deficient number, since it is larger than the sum of its proper divisors (229162658).

427221598 is a wasteful number, since it uses less digits than its factorization.

427221598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4959.

The product of its digits is 80640, while the sum is 40.

The square root of 427221598 is about 20669.3395637113. The cubic root of 427221598 is about 753.1550631939.

The spelling of 427221598 in words is "four hundred twenty-seven million, two hundred twenty-one thousand, five hundred ninety-eight".