1066413389 has 2 divisors, whose sum is σ = 1066413390. Its totient is φ = 1066413388.

The previous prime is 1066413311. The next prime is 1066413391. The reversal of 1066413389 is 9833146601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 808264900 + 258148489 = 28430^2 + 16067^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066413389 - 2¹² = 1066409293 is a prime.

It is a super-2 number, since 2×1066413389² = 2274475032476930642, which contains 22 as substring.

Together with 1066413391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066413289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533206694 + 533206695.

It is an arithmetic number, because the mean of its divisors is an integer number (533206695).

Almost surely, 2^1066413389 is an apocalyptic number.

It is an amenable number.

1066413389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066413389 is an equidigital number, since it uses as much as digits as its factorization.

1066413389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 1066413389 is about 32655.9855003642. The cubic root of 1066413389 is about 1021.6650330126.

The spelling of 1066413389 in words is "one billion, sixty-six million, four hundred thirteen thousand, three hundred eighty-nine".