68778596 has 6 divisors (see below), whose sum is σ = 120362550. Its totient is φ = 34389296.

The previous prime is 68778587. The next prime is 68778599. The reversal of 68778596 is 69587786.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 64000000 + 4778596 = 8000^2 + 2186^2 .

It is not an unprimeable number, because it can be changed into a prime (68778599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8597321 + ... + 8597328.

It is an arithmetic number, because the mean of its divisors is an integer number (20060425).

Almost surely, 2^68778596 is an apocalyptic number.

It is an amenable number.

68778596 is a deficient number, since it is larger than the sum of its proper divisors (51583954).

68778596 is a wasteful number, since it uses less digits than its factorization.

68778596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17194653 (or 17194651 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 56.

The square root of 68778596 is about 8293.2862002948. The cubic root of 68778596 is about 409.7174257570.

The spelling of 68778596 in words is "sixty-eight million, seven hundred seventy-eight thousand, five hundred ninety-six".