427297566 has 8 divisors (see below), whose sum is σ = 854595144. Its totient is φ = 142432520.

The previous prime is 427297553. The next prime is 427297589. The reversal of 427297566 is 665792724.

It is a sphenic number, since it is the product of 3 distinct primes.

427297566 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35608125 + ... + 35608136.

It is an arithmetic number, because the mean of its divisors is an integer number (106824393).

Almost surely, 2^427297566 is an apocalyptic number.

427297566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

427297566 is a wasteful number, since it uses less digits than its factorization.

427297566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71216266.

The product of its digits is 1270080, while the sum is 48.

The square root of 427297566 is about 20671.1771798318. The cubic root of 427297566 is about 753.1997022392.

The spelling of 427297566 in words is "four hundred twenty-seven million, two hundred ninety-seven thousand, five hundred sixty-six".