78787068 has 24 divisors (see below), whose sum is σ = 185243520. Its totient is φ = 26061360.

The previous prime is 78787063. The next prime is 78787073. The reversal of 78787068 is 86078787.

It is an interprime number because it is at equal distance from previous prime (78787063) and next prime (78787073).

It is a self number, because there is not a number n which added to its sum of digits gives 78787068.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78787063) 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, 23488 + ... + 26631.

It is an arithmetic number, because the mean of its divisors is an integer number (7718480).

Almost surely, 2^78787068 is an apocalyptic number.

It is an amenable number.

78787068 is an abundant number, since it is smaller than the sum of its proper divisors (106456452).

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

78787068 is a wasteful number, since it uses less digits than its factorization.

78787068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50257 (or 50255 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 51.

The square root of 78787068 is about 8876.2079741295. The cubic root of 78787068 is about 428.6981864418.

The spelling of 78787068 in words is "seventy-eight million, seven hundred eighty-seven thousand, sixty-eight".