80820352 has 16 divisors (see below), whose sum is σ = 161009550. Its totient is φ = 40410112.

The previous prime is 80820331. The next prime is 80820353. The reversal of 80820352 is 25302808.

It can be written as a sum of positive squares in only one way, i.e., 79852096 + 968256 = 8936^2 + 984^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 80820352.

It is not an unprimeable number, because it can be changed into a prime (80820353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315577 + ... + 315832.

Almost surely, 2^80820352 is an apocalyptic number.

It is an amenable number.

80820352 is a deficient number, since it is larger than the sum of its proper divisors (80189198).

80820352 is an equidigital number, since it uses as much as digits as its factorization.

80820352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631423 (or 631411 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 80820352 is about 8990.0140155619. The cubic root of 80820352 is about 432.3547611715.

The spelling of 80820352 in words is "eighty million, eight hundred twenty thousand, three hundred fifty-two".