1063429621 has 2 divisors, whose sum is σ = 1063429622. Its totient is φ = 1063429620.

The previous prime is 1063429597. The next prime is 1063429643. The reversal of 1063429621 is 1269243601.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 637007121 + 426422500 = 25239^2 + 20650^2 .

It is a cyclic number.

It is not a de Polignac number, because 1063429621 - 2¹⁷ = 1063298549 is a prime.

It is a super-2 number, since 2×1063429621² = 2261765117640407282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1063429651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531714810 + 531714811.

It is an arithmetic number, because the mean of its divisors is an integer number (531714811).

Almost surely, 2^1063429621 is an apocalyptic number.

It is an amenable number.

1063429621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1063429621 is an equidigital number, since it uses as much as digits as its factorization.

1063429621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 1063429621 is about 32610.2686434810. The cubic root of 1063429621 is about 1020.7112881238.

The spelling of 1063429621 in words is "one billion, sixty-three million, four hundred twenty-nine thousand, six hundred twenty-one".