426915861 has 8 divisors (see below), whose sum is σ = 569870784. Its totient is φ = 284285760.

The previous prime is 426915859. The next prime is 426915871. The reversal of 426915861 is 168519624.

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

It is not a de Polignac number, because 426915861 - 2¹ = 426915859 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426915851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78121 + ... + 83406.

It is an arithmetic number, because the mean of its divisors is an integer number (71233848).

Almost surely, 2^426915861 is an apocalyptic number.

It is an amenable number.

426915861 is a deficient number, since it is larger than the sum of its proper divisors (142954923).

426915861 is a wasteful number, since it uses less digits than its factorization.

426915861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162411.

The product of its digits is 103680, while the sum is 42.

The square root of 426915861 is about 20661.9423336723. The cubic root of 426915861 is about 752.9753576094.

The spelling of 426915861 in words is "four hundred twenty-six million, nine hundred fifteen thousand, eight hundred sixty-one".