78086106 has 84 divisors (see below), whose sum is σ = 204471882. Its totient is φ = 22289904.

The previous prime is 78086093. The next prime is 78086111. The reversal of 78086106 is 60168087.

It can be written as a sum of positive squares in only one way, i.e., 43758225 + 34327881 = 6615^2 + 5859^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 70896 + ... + 71988.

Almost surely, 2^78086106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78086106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102235941).

78086106 is an abundant number, since it is smaller than the sum of its proper divisors (126385776).

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

78086106 is a wasteful number, since it uses less digits than its factorization.

78086106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 1105 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 78086106 is about 8836.6343140361. The cubic root of 78086106 is about 427.4230332352.

The spelling of 78086106 in words is "seventy-eight million, eighty-six thousand, one hundred six".