68077838 has 16 divisors (see below), whose sum is σ = 107618976. Its totient is φ = 32234400.

The previous prime is 68077837. The next prime is 68077847. The reversal of 68077838 is 83877086.

It is a junction number, because it is equal to n+sod(n) for n = 68077792 and 68077801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68077837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2681 + ... + 11972.

It is an arithmetic number, because the mean of its divisors is an integer number (6726186).

Almost surely, 2^68077838 is an apocalyptic number.

68077838 is a deficient number, since it is larger than the sum of its proper divisors (39541138).

68077838 is a wasteful number, since it uses less digits than its factorization.

68077838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14779.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 68077838 is about 8250.9295233931. The cubic root of 68077838 is about 408.3211899577.

The spelling of 68077838 in words is "sixty-eight million, seventy-seven thousand, eight hundred thirty-eight".