80289620 has 24 divisors (see below), whose sum is σ = 168784224. Its totient is φ = 32082336.

The previous prime is 80289617. The next prime is 80289631. The reversal of 80289620 is 2698208.

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, 28307 + ... + 31013.

It is an arithmetic number, because the mean of its divisors is an integer number (7032676).

Almost surely, 2^80289620 is an apocalyptic number.

It is an amenable number.

80289620 is an abundant number, since it is smaller than the sum of its proper divisors (88494604).

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

80289620 is a wasteful number, since it uses less digits than its factorization.

80289620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4199 (or 4197 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 80289620 is about 8960.4475334662. The cubic root of 80289620 is about 431.4062846006.

The spelling of 80289620 in words is "eighty million, two hundred eighty-nine thousand, six hundred twenty".