1066839377 has 2 divisors, whose sum is σ = 1066839378. Its totient is φ = 1066839376.

The previous prime is 1066839373. The next prime is 1066839409. The reversal of 1066839377 is 7739386601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 815902096 + 250937281 = 28564^2 + 15841^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066839377 - 2² = 1066839373 is a prime.

It is a super-2 number, since 2×1066839377² = 2276292512635496258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1066839373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533419688 + 533419689.

It is an arithmetic number, because the mean of its divisors is an integer number (533419689).

Almost surely, 2^1066839377 is an apocalyptic number.

It is an amenable number.

1066839377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066839377 is an equidigital number, since it uses as much as digits as its factorization.

1066839377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The square root of 1066839377 is about 32662.5072062755. The cubic root of 1066839377 is about 1021.8010525310.

The spelling of 1066839377 in words is "one billion, sixty-six million, eight hundred thirty-nine thousand, three hundred seventy-seven".