78113826 has 96 divisors (see below), whose sum is σ = 207068160. Its totient is φ = 20785248.

The previous prime is 78113821. The next prime is 78113837. The reversal of 78113826 is 62831187.

It is a super-2 number, since 2×78113826² = 12203539624716552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78113821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 160155 + ... + 160641.

It is an arithmetic number, because the mean of its divisors is an integer number (2156960).

Almost surely, 2^78113826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78113826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103534080).

78113826 is an abundant number, since it is smaller than the sum of its proper divisors (128954334).

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

78113826 is a wasteful number, since it uses less digits than its factorization.

78113826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 585 counting only the distinct ones).

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

The square root of 78113826 is about 8838.2026453346. The cubic root of 78113826 is about 427.4736046081.

The spelling of 78113826 in words is "seventy-eight million, one hundred thirteen thousand, eight hundred twenty-six".