78620168 has 64 divisors (see below), whose sum is σ = 167270400. Its totient is φ = 34332480.

The previous prime is 78620161. The next prime is 78620177. The reversal of 78620168 is 86102687.

It is a super-2 number, since 2×78620168² = 12362261632696448, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (78620161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298805 + ... + 299067.

It is an arithmetic number, because the mean of its divisors is an integer number (2613600).

Almost surely, 2^78620168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78620168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83635200).

78620168 is an abundant number, since it is smaller than the sum of its proper divisors (88650232).

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

78620168 is a wasteful number, since it uses less digits than its factorization.

78620168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 78620168 is about 8866.8014526096. The cubic root of 78620168 is about 428.3952589371.

The spelling of 78620168 in words is "seventy-eight million, six hundred twenty thousand, one hundred sixty-eight".