1429362821 has 2 divisors, whose sum is σ = 1429362822. Its totient is φ = 1429362820.

The previous prime is 1429362769. The next prime is 1429362887. The reversal of 1429362821 is 1282639241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1268428225 + 160934596 = 35615^2 + 12686^2 .

It is a cyclic number.

It is not a de Polignac number, because 1429362821 - 2¹⁴ = 1429346437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1429364821) 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 as a sum of consecutive naturals, namely, 714681410 + 714681411.

It is an arithmetic number, because the mean of its divisors is an integer number (714681411).

Almost surely, 2^1429362821 is an apocalyptic number.

It is an amenable number.

1429362821 is a deficient number, since it is larger than the sum of its proper divisors (1).

1429362821 is an equidigital number, since it uses as much as digits as its factorization.

1429362821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 1429362821 is about 37806.9149891921. The cubic root of 1429362821 is about 1126.4558129958.

The spelling of 1429362821 in words is "one billion, four hundred twenty-nine million, three hundred sixty-two thousand, eight hundred twenty-one".