420666327 has 48 divisors (see below), whose sum is σ = 655724160. Its totient is φ = 259091136.

The previous prime is 420666287. The next prime is 420666371. The reversal of 420666327 is 723666024.

It is a happy number.

It is not a de Polignac number, because 420666327 - 2¹⁵ = 420633559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420666291 and 420666300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420666427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1518513 + ... + 1518789.

It is an arithmetic number, because the mean of its divisors is an integer number (13660920).

Almost surely, 2^420666327 is an apocalyptic number.

420666327 is a deficient number, since it is larger than the sum of its proper divisors (235057833).

420666327 is a wasteful number, since it uses less digits than its factorization.

420666327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 420666327 is about 20510.1518034363. The cubic root of 420666327 is about 749.2830642225.

The spelling of 420666327 in words is "four hundred twenty million, six hundred sixty-six thousand, three hundred twenty-seven".