1068288787 has 4 divisors (see below), whose sum is σ = 1068906960. Its totient is φ = 1067670616.

The previous prime is 1068288773. The next prime is 1068288811. The reversal of 1068288787 is 7878828601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7878828601 = 7 ⋅1125546943.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1068288787 is a prime.

It is a super-2 number, since 2×1068288787² = 2282481864859862738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1068288707) 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, 306487 + ... + 309952.

It is an arithmetic number, because the mean of its divisors is an integer number (267226740).

Almost surely, 2^1068288787 is an apocalyptic number.

1068288787 is a deficient number, since it is larger than the sum of its proper divisors (618173).

1068288787 is an equidigital number, since it uses as much as digits as its factorization.

1068288787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618172.

The product of its (nonzero) digits is 2408448, while the sum is 55.

The square root of 1068288787 is about 32684.6873474415. The cubic root of 1068288787 is about 1022.2635834114.

The spelling of 1068288787 in words is "one billion, sixty-eight million, two hundred eighty-eight thousand, seven hundred eighty-seven".