68683777 has 8 divisors (see below), whose sum is σ = 70036736. Its totient is φ = 67340592.

The previous prime is 68683763. The next prime is 68683793. The reversal of 68683777 is 77738686.

It is a happy number.

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 68683777 - 2⁷ = 68683649 is a prime.

It is a super-2 number, since 2×68683777² = 9434922445971458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68683477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12643 + ... + 17239.

It is an arithmetic number, because the mean of its divisors is an integer number (8754592).

Almost surely, 2^68683777 is an apocalyptic number.

68683777 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

68683777 is a deficient number, since it is larger than the sum of its proper divisors (1352959).

68683777 is a wasteful number, since it uses less digits than its factorization.

68683777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887.

The product of its digits is 2370816, while the sum is 52.

The square root of 68683777 is about 8287.5676166171. The cubic root of 68683777 is about 409.5290587112.

The spelling of 68683777 in words is "sixty-eight million, six hundred eighty-three thousand, seven hundred seventy-seven".