77068218 has 16 divisors (see below), whose sum is σ = 162249120. Its totient is φ = 24337296.

The previous prime is 77068207. The next prime is 77068223. The reversal of 77068218 is 81286077.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337905 + ... + 338132.

It is an arithmetic number, because the mean of its divisors is an integer number (10140570).

Almost surely, 2^77068218 is an apocalyptic number.

77068218 is an abundant number, since it is smaller than the sum of its proper divisors (85180902).

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

77068218 is a wasteful number, since it uses less digits than its factorization.

77068218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676061.

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 77068218 is about 8778.8506081377. The cubic root of 77068218 is about 425.5576863366.

The spelling of 77068218 in words is "seventy-seven million, sixty-eight thousand, two hundred eighteen".