420727766 has 8 divisors (see below), whose sum is σ = 652853520. Its totient is φ = 203109928.

The previous prime is 420727763. The next prime is 420727787. The reversal of 420727766 is 667727024.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420727763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3626906 + ... + 3627021.

It is an arithmetic number, because the mean of its divisors is an integer number (81606690).

Almost surely, 2^420727766 is an apocalyptic number.

420727766 is a deficient number, since it is larger than the sum of its proper divisors (232125754).

420727766 is a wasteful number, since it uses less digits than its factorization.

420727766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7253958.

The product of its (nonzero) digits is 197568, while the sum is 41.

The square root of 420727766 is about 20511.6495192366. The cubic root of 420727766 is about 749.3195404494.

The spelling of 420727766 in words is "four hundred twenty million, seven hundred twenty-seven thousand, seven hundred sixty-six".