426799869 has 16 divisors (see below), whose sum is σ = 599470080. Its totient is φ = 269354160.

The previous prime is 426799837. The next prime is 426799889. The reversal of 426799869 is 968997624.

It is not a de Polignac number, because 426799869 - 2⁵ = 426799837 is a prime.

It is a super-2 number, since 2×426799869² = 364316256356834322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426799889) 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, 118554 + ... + 122100.

It is an arithmetic number, because the mean of its divisors is an integer number (37466880).

Almost surely, 2^426799869 is an apocalyptic number.

It is an amenable number.

426799869 is a deficient number, since it is larger than the sum of its proper divisors (172670211).

426799869 is a wasteful number, since it uses less digits than its factorization.

426799869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5680.

The product of its digits is 11757312, while the sum is 60.

The square root of 426799869 is about 20659.1352432768. The cubic root of 426799869 is about 752.9071575753.

The spelling of 426799869 in words is "four hundred twenty-six million, seven hundred ninety-nine thousand, eight hundred sixty-nine".