78287068 has 24 divisors (see below), whose sum is σ = 144864720. Its totient is φ = 36915840.

The previous prime is 78287063. The next prime is 78287089. The reversal of 78287068 is 86078287.

It is a super-2 number, since 2×78287068² = 12257730032073248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78287063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15498 + ... + 19918.

It is an arithmetic number, because the mean of its divisors is an integer number (6036030).

Almost surely, 2^78287068 is an apocalyptic number.

It is an amenable number.

78287068 is a deficient number, since it is larger than the sum of its proper divisors (66577652).

78287068 is a wasteful number, since it uses less digits than its factorization.

78287068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4677 (or 4675 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 78287068 is about 8847.9979656417. The cubic root of 78287068 is about 427.7893903683.

The spelling of 78287068 in words is "seventy-eight million, two hundred eighty-seven thousand, sixty-eight".