80835720 has 64 divisors (see below), whose sum is σ = 277153920. Its totient is φ = 18476544.

The previous prime is 80835719. The next prime is 80835749. The reversal of 80835720 is 2753808.

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 15 ways as a sum of consecutive naturals, for example, 47277 + ... + 48956.

It is an arithmetic number, because the mean of its divisors is an integer number (4330530).

Almost surely, 2^80835720 is an apocalyptic number.

It is an amenable number.

80835720 is an abundant number, since it is smaller than the sum of its proper divisors (196318200).

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

80835720 is a wasteful number, since it uses less digits than its factorization.

80835720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96254 (or 96250 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 80835720 is about 8990.8687010767. The cubic root of 80835720 is about 432.3821635387.

The spelling of 80835720 in words is "eighty million, eight hundred thirty-five thousand, seven hundred twenty".