80926780 has 24 divisors (see below), whose sum is σ = 185396400. Its totient is φ = 29427840.

The previous prime is 80926777. The next prime is 80926793. The reversal of 80926780 is 8762908.

It is a super-3 number, since 3×80926780³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 183705 + ... + 184144.

It is an arithmetic number, because the mean of its divisors is an integer number (7724850).

Almost surely, 2^80926780 is an apocalyptic number.

It is an amenable number.

80926780 is an abundant number, since it is smaller than the sum of its proper divisors (104469620).

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

80926780 is a wasteful number, since it uses less digits than its factorization.

80926780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367869 (or 367867 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 80926780 is about 8995.9313025389. The cubic root of 80926780 is about 432.5444595502.

The spelling of 80926780 in words is "eighty million, nine hundred twenty-six thousand, seven hundred eighty".