80785026 has 60 divisors (see below), whose sum is σ = 210592998. Its totient is φ = 23079168.

The previous prime is 80785013. The next prime is 80785031. The reversal of 80785026 is 62058708.

80785026 is a `hidden beast` number, since 80 + 78 + 502 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 64016001 + 16769025 = 8001^2 + 4095^2 .

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 29 ways as a sum of consecutive naturals, for example, 2850 + ... + 13026.

Almost surely, 2^80785026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80785026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105296499).

80785026 is an abundant number, since it is smaller than the sum of its proper divisors (129807972).

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

80785026 is a wasteful number, since it uses less digits than its factorization.

80785026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10205 (or 10189 counting only the distinct ones).

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

The square root of 80785026 is about 8988.0490652866. The cubic root of 80785026 is about 432.2917589295.

The spelling of 80785026 in words is "eighty million, seven hundred eighty-five thousand, twenty-six".