426571971 has 8 divisors (see below), whose sum is σ = 650014464. Its totient is φ = 243755400.

The previous prime is 426571909. The next prime is 426571979. The reversal of 426571971 is 179175624.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 426571971 - 2⁹ = 426571459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (426571979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10156455 + ... + 10156496.

It is an arithmetic number, because the mean of its divisors is an integer number (81251808).

Almost surely, 2^426571971 is an apocalyptic number.

426571971 is a deficient number, since it is larger than the sum of its proper divisors (223442493).

426571971 is a wasteful number, since it uses less digits than its factorization.

426571971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20312961.

The product of its digits is 105840, while the sum is 42.

The square root of 426571971 is about 20653.6188354487. The cubic root of 426571971 is about 752.7731239626.

The spelling of 426571971 in words is "four hundred twenty-six million, five hundred seventy-one thousand, nine hundred seventy-one".