420102727 has 4 divisors (see below), whose sum is σ = 458293896. Its totient is φ = 381911560.

The previous prime is 420102703. The next prime is 420102743. The reversal of 420102727 is 727201024.

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

It is a cyclic number.

It is not a de Polignac number, because 420102727 - 2²³ = 411714119 is a prime.

It is a super-3 number, since 3×420102727³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420102227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19095568 + ... + 19095589.

It is an arithmetic number, because the mean of its divisors is an integer number (114573474).

Almost surely, 2^420102727 is an apocalyptic number.

420102727 is a deficient number, since it is larger than the sum of its proper divisors (38191169).

420102727 is a wasteful number, since it uses less digits than its factorization.

420102727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38191168.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 420102727 is about 20496.4076608561. The cubic root of 420102727 is about 748.9482900457.

The spelling of 420102727 in words is "four hundred twenty million, one hundred two thousand, seven hundred twenty-seven".