426864829 has 2 divisors, whose sum is σ = 426864830. Its totient is φ = 426864828.

The previous prime is 426864803. The next prime is 426864853. The reversal of 426864829 is 928468624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 323028729 + 103836100 = 17973^2 + 10190^2 .

It is a cyclic number.

It is not a de Polignac number, because 426864829 - 2¹⁷ = 426733757 is a prime.

It is a super-3 number, since 3×426864829³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426864869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213432414 + 213432415.

It is an arithmetic number, because the mean of its divisors is an integer number (213432415).

Almost surely, 2^426864829 is an apocalyptic number.

It is an amenable number.

426864829 is a deficient number, since it is larger than the sum of its proper divisors (1).

426864829 is an equidigital number, since it uses as much as digits as its factorization.

426864829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1327104, while the sum is 49.

The square root of 426864829 is about 20660.7073693037. The cubic root of 426864829 is about 752.9453537506.

The spelling of 426864829 in words is "four hundred twenty-six million, eight hundred sixty-four thousand, eight hundred twenty-nine".