420496971 has 16 divisors (see below), whose sum is σ = 600854784. Its totient is φ = 260894304.

The previous prime is 420496969. The next prime is 420496981. The reversal of 420496971 is 179694024.

It is not a de Polignac number, because 420496971 - 2¹ = 420496969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420496981) 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, 79801 + ... + 84906.

It is an arithmetic number, because the mean of its divisors is an integer number (37553424).

Almost surely, 2^420496971 is an apocalyptic number.

420496971 is a deficient number, since it is larger than the sum of its proper divisors (180357813).

420496971 is a wasteful number, since it uses less digits than its factorization.

420496971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164770.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 420496971 is about 20506.0227981927. The cubic root of 420496971 is about 749.1824994698.

The spelling of 420496971 in words is "four hundred twenty million, four hundred ninety-six thousand, nine hundred seventy-one".