80783420 has 24 divisors (see below), whose sum is σ = 170889264. Its totient is φ = 32076416.

The previous prime is 80783419. The next prime is 80783447. The reversal of 80783420 is 2438708.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 12002 + ... + 17481.

It is an arithmetic number, because the mean of its divisors is an integer number (7120386).

Almost surely, 2^80783420 is an apocalyptic number.

It is an amenable number.

80783420 is an abundant number, since it is smaller than the sum of its proper divisors (90105844).

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

80783420 is a wasteful number, since it uses less digits than its factorization.

80783420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29629 (or 29627 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 80783420 is about 8987.9597239863. The cubic root of 80783420 is about 432.2888942684.

The spelling of 80783420 in words is "eighty million, seven hundred eighty-three thousand, four hundred twenty".