427231566 has 24 divisors (see below), whose sum is σ = 938708784. Its totient is φ = 140404320.

The previous prime is 427231561. The next prime is 427231583. The reversal of 427231566 is 665132724.

It is a self number, because there is not a number n which added to its sum of digits gives 427231566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427231561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165871 + ... + 168426.

It is an arithmetic number, because the mean of its divisors is an integer number (39112866).

Almost surely, 2^427231566 is an apocalyptic number.

427231566 is an abundant number, since it is smaller than the sum of its proper divisors (511477218).

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

427231566 is a wasteful number, since it uses less digits than its factorization.

427231566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334376 (or 334373 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 427231566 is about 20669.5806924088. The cubic root of 427231566 is about 753.1609207249.

The spelling of 427231566 in words is "four hundred twenty-seven million, two hundred thirty-one thousand, five hundred sixty-six".