1066358947 has 2 divisors, whose sum is σ = 1066358948. Its totient is φ = 1066358946.

The previous prime is 1066358837. The next prime is 1066358963. The reversal of 1066358947 is 7498536601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1066358947 - 2⁷ = 1066358819 is a prime.

It is a super-2 number, since 2×1066358947² = 2274242807693897618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1066358947.

It is not a weakly prime, because it can be changed into another prime (1066328947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533179473 + 533179474.

It is an arithmetic number, because the mean of its divisors is an integer number (533179474).

Almost surely, 2^1066358947 is an apocalyptic number.

1066358947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066358947 is an equidigital number, since it uses as much as digits as its factorization.

1066358947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 1066358947 is about 32655.1519212513. The cubic root of 1066358947 is about 1021.6476468736.

The spelling of 1066358947 in words is "one billion, sixty-six million, three hundred fifty-eight thousand, nine hundred forty-seven".