78383208 has 96 divisors (see below), whose sum is σ = 211226400. Its totient is φ = 24230016.

The previous prime is 78383203. The next prime is 78383251. The reversal of 78383208 is 80238387.

It is a happy number.

It is a super-2 number, since 2×78383208² = 12287854592742528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78383203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 719058 + ... + 719166.

It is an arithmetic number, because the mean of its divisors is an integer number (2200275).

Almost surely, 2^78383208 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 78383208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105613200).

78383208 is an abundant number, since it is smaller than the sum of its proper divisors (132843192).

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

78383208 is a wasteful number, since it uses less digits than its factorization.

78383208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 78383208 is about 8853.4291661480. The cubic root of 78383208 is about 427.9644335310.

The spelling of 78383208 in words is "seventy-eight million, three hundred eighty-three thousand, two hundred eight".