1068976709 has 4 divisors (see below), whose sum is σ = 1071954720. Its totient is φ = 1065998700.

The previous prime is 1068976687. The next prime is 1068976721. The reversal of 1068976709 is 9076798601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9076798601 = 13 ⋅698215277.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1068976709 is a prime.

It is a super-2 number, since 2×1068976709² = 2285422408768941362, 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 (1068976109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1488467 + ... + 1489184.

It is an arithmetic number, because the mean of its divisors is an integer number (267988680).

Almost surely, 2^1068976709 is an apocalyptic number.

It is an amenable number.

1068976709 is a deficient number, since it is larger than the sum of its proper divisors (2978011).

1068976709 is an equidigital number, since it uses as much as digits as its factorization.

1068976709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978010.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The square root of 1068976709 is about 32695.2092668024. The cubic root of 1068976709 is about 1022.4829643884.

The spelling of 1068976709 in words is "one billion, sixty-eight million, nine hundred seventy-six thousand, seven hundred nine".