421447101 has 16 divisors (see below), whose sum is σ = 587575296. Its totient is φ = 268192496.

The previous prime is 421447093. The next prime is 421447123. The reversal of 421447101 is 101744124.

It is a cyclic number.

It is not a de Polignac number, because 421447101 - 2³ = 421447093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421447181) 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 15 ways as a sum of consecutive naturals, for example, 28636 + ... + 40778.

It is an arithmetic number, because the mean of its divisors is an integer number (36723456).

Almost surely, 2^421447101 is an apocalyptic number.

It is an amenable number.

421447101 is a deficient number, since it is larger than the sum of its proper divisors (166128195).

421447101 is a wasteful number, since it uses less digits than its factorization.

421447101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12672.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 421447101 is about 20529.1768222693. The cubic root of 421447101 is about 749.7463444437.

It can be divided in two parts, 4214 and 47101, that added together give a palindrome (51315).

The spelling of 421447101 in words is "four hundred twenty-one million, four hundred forty-seven thousand, one hundred one".