68695779 has 8 divisors (see below), whose sum is σ = 95576832. Its totient is φ = 43805960.

The previous prime is 68695769. The next prime is 68695813. The reversal of 68695779 is 97759686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68695779 - 2⁴ = 68695763 is a prime.

It is a super-2 number, since 2×68695779² = 9438220104833682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68695709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497727 + ... + 497864.

It is an arithmetic number, because the mean of its divisors is an integer number (11947104).

Almost surely, 2^68695779 is an apocalyptic number.

68695779 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

68695779 is a deficient number, since it is larger than the sum of its proper divisors (26881053).

68695779 is a wasteful number, since it uses less digits than its factorization.

68695779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995617.

The product of its digits is 5715360, while the sum is 57.

The square root of 68695779 is about 8288.2916816434. The cubic root of 68695779 is about 409.5529114156.

The spelling of 68695779 in words is "sixty-eight million, six hundred ninety-five thousand, seven hundred seventy-nine".