1068690715 has 4 divisors (see below), whose sum is σ = 1282428864. Its totient is φ = 854952568.

The previous prime is 1068690713. The next prime is 1068690731. The reversal of 1068690715 is 5170968601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5170968601 = 293 ⋅17648357.

It is a cyclic number.

It is not a de Polignac number, because 1068690715 - 2¹ = 1068690713 is a prime.

It is a super-2 number, since 2×1068690715² = 2284199688654422450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1068690713) 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, 106869067 + ... + 106869076.

It is an arithmetic number, because the mean of its divisors is an integer number (320607216).

Almost surely, 2^1068690715 is an apocalyptic number.

1068690715 is a deficient number, since it is larger than the sum of its proper divisors (213738149).

1068690715 is an equidigital number, since it uses as much as digits as its factorization.

1068690715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213738148.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 1068690715 is about 32690.8353365282. The cubic root of 1068690715 is about 1022.3917712337.

The spelling of 1068690715 in words is "one billion, sixty-eight million, six hundred ninety thousand, seven hundred fifteen".