1029422789 has 2 divisors, whose sum is σ = 1029422790. Its totient is φ = 1029422788.

The previous prime is 1029422747. The next prime is 1029422803. The reversal of 1029422789 is 9872249201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 923126689 + 106296100 = 30383^2 + 10310^2 .

It is a cyclic number.

It is not a de Polignac number, because 1029422789 - 2⁸ = 1029422533 is a prime.

It is a super-2 number, since 2×1029422789² = 2119422557025077042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1029422729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514711394 + 514711395.

It is an arithmetic number, because the mean of its divisors is an integer number (514711395).

Almost surely, 2^1029422789 is an apocalyptic number.

It is an amenable number.

1029422789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1029422789 is an equidigital number, since it uses as much as digits as its factorization.

1029422789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 1029422789 is about 32084.6191967429. The cubic root of 1029422789 is about 1009.7129495009.

The spelling of 1029422789 in words is "one billion, twenty-nine million, four hundred twenty-two thousand, seven hundred eighty-nine".