1066879087 has 4 divisors (see below), whose sum is σ = 1066964416. Its totient is φ = 1066793760.

The previous prime is 1066879069. The next prime is 1066879091. The reversal of 1066879087 is 7809786601.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7809786601 = 1171 ⋅6669331.

It is a cyclic number.

It is not a de Polignac number, because 1066879087 - 2¹⁹ = 1066354799 is a prime.

It is a super-2 number, since 2×1066879087² = 2276461972555907138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066879007) 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 in 3 ways as a sum of consecutive naturals, for example, 19839 + ... + 50272.

It is an arithmetic number, because the mean of its divisors is an integer number (266741104).

Almost surely, 2^1066879087 is an apocalyptic number.

1066879087 is a deficient number, since it is larger than the sum of its proper divisors (85329).

1066879087 is an equidigital number, since it uses as much as digits as its factorization.

1066879087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85328.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 1066879087 is about 32663.1150841435. The cubic root of 1066879087 is about 1021.8137302334.

The spelling of 1066879087 in words is "one billion, sixty-six million, eight hundred seventy-nine thousand, eighty-seven".