420741971 has 16 divisors (see below), whose sum is σ = 466523904. Its totient is φ = 376989984.

The previous prime is 420741961. The next prime is 420741989. The reversal of 420741971 is 179147024.

It is a cyclic number.

It is not a de Polignac number, because 420741971 - 2⁶ = 420741907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420741961) 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 15 ways as a sum of consecutive naturals, for example, 91100 + ... + 95606.

It is an arithmetic number, because the mean of its divisors is an integer number (29157744).

Almost surely, 2^420741971 is an apocalyptic number.

420741971 is a deficient number, since it is larger than the sum of its proper divisors (45781933).

420741971 is a wasteful number, since it uses less digits than its factorization.

420741971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4730.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 420741971 is about 20511.9957829559. The cubic root of 420741971 is about 749.3279734276.

Adding to 420741971 its reverse (179147024), we get a palindrome (599888995).

The spelling of 420741971 in words is "four hundred twenty million, seven hundred forty-one thousand, nine hundred seventy-one".