427666766 has 8 divisors (see below), whose sum is σ = 641612664. Its totient is φ = 213795880.

The previous prime is 427666753. The next prime is 427666783. The reversal of 427666766 is 667666724.

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

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, 1220 + ... + 29271.

It is an arithmetic number, because the mean of its divisors is an integer number (80201583).

Almost surely, 2^427666766 is an apocalyptic number.

427666766 is a deficient number, since it is larger than the sum of its proper divisors (213945898).

427666766 is a wasteful number, since it uses less digits than its factorization.

427666766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37506.

The product of its digits is 3048192, while the sum is 50.

The square root of 427666766 is about 20680.1055606590. The cubic root of 427666766 is about 753.4165700615.

The spelling of 427666766 in words is "four hundred twenty-seven million, six hundred sixty-six thousand, seven hundred sixty-six".