78026850 has 108 divisors (see below), whose sum is σ = 230582898. Its totient is φ = 18902400.

The previous prime is 78026803. The next prime is 78026881. The reversal of 78026850 is 5862087.

It can be written as a sum of positive squares in 3 ways, for example, as 68608089 + 9418761 = 8283^2 + 3069^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 53734 + ... + 55166.

Almost surely, 2^78026850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78026850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115291449).

78026850 is an abundant number, since it is smaller than the sum of its proper divisors (152556048).

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

78026850 is a wasteful number, since it uses less digits than its factorization.

78026850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473 (or 1454 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 78026850 is about 8833.2808174540. The cubic root of 78026850 is about 427.3148885649.

The spelling of 78026850 in words is "seventy-eight million, twenty-six thousand, eight hundred fifty".