68077836 has 36 divisors (see below), whose sum is σ = 181144600. Its totient is φ = 21498048.

The previous prime is 68077777. The next prime is 68077837. The reversal of 68077836 is 63877086.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 68077791 and 68077800.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49081 + ... + 50448.

Almost surely, 2^68077836 is an apocalyptic number.

It is an amenable number.

68077836 is an abundant number, since it is smaller than the sum of its proper divisors (113066764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68077836 is a wasteful number, since it uses less digits than its factorization.

68077836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99558 (or 99553 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 68077836 is about 8250.9294021946. The cubic root of 68077836 is about 408.3211859591.

The spelling of 68077836 in words is "sixty-eight million, seventy-seven thousand, eight hundred thirty-six".