427566806 has 4 divisors (see below), whose sum is σ = 641350212. Its totient is φ = 213783402.

The previous prime is 427566793. The next prime is 427566829. The reversal of 427566806 is 608665724.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106891700 + ... + 106891703.

It is an arithmetic number, because the mean of its divisors is an integer number (160337553).

Almost surely, 2^427566806 is an apocalyptic number.

427566806 is a deficient number, since it is larger than the sum of its proper divisors (213783406).

427566806 is a wasteful number, since it uses less digits than its factorization.

427566806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213783405.

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 427566806 is about 20677.6886039035. The cubic root of 427566806 is about 753.3578659530.

The spelling of 427566806 in words is "four hundred twenty-seven million, five hundred sixty-six thousand, eight hundred six".