78227968 has 160 divisors (see below), whose sum is σ = 203486976. Its totient is φ = 29196288.

The previous prime is 78227957. The next prime is 78227969. The reversal of 78227968 is 86972287.

It is a super-2 number, since 2×78227968² = 12239229954818048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78227969) 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, 1071580 + ... + 1071652.

Almost surely, 2^78227968 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 78227968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101743488).

78227968 is an abundant number, since it is smaller than the sum of its proper divisors (125259008).

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

78227968 is a wasteful number, since it uses less digits than its factorization.

78227968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 118 counting only the distinct ones).

The product of its digits is 677376, while the sum is 49.

The square root of 78227968 is about 8844.6575965381. The cubic root of 78227968 is about 427.6817152087.

The spelling of 78227968 in words is "seventy-eight million, two hundred twenty-seven thousand, nine hundred sixty-eight".