78868078 has 16 divisors (see below), whose sum is σ = 120614400. Its totient is φ = 38669400.

The previous prime is 78868043. The next prime is 78868079. The reversal of 78868078 is 87086887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78868079) 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, 26863 + ... + 29653.

It is an arithmetic number, because the mean of its divisors is an integer number (7538400).

Almost surely, 2^78868078 is an apocalyptic number.

78868078 is a deficient number, since it is larger than the sum of its proper divisors (41746322).

78868078 is a wasteful number, since it uses less digits than its factorization.

78868078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3063.

The product of its (nonzero) digits is 1204224, while the sum is 52.

The square root of 78868078 is about 8880.7701242629. The cubic root of 78868078 is about 428.8450673317.

The spelling of 78868078 in words is "seventy-eight million, eight hundred sixty-eight thousand, seventy-eight".