80121704 has 16 divisors (see below), whose sum is σ = 161784420. Its totient is φ = 36979200.

The previous prime is 80121703. The next prime is 80121733. The reversal of 80121704 is 40712108.

It can be written as a sum of positive squares in 2 ways, for example, as 78676900 + 1444804 = 8870^2 + 1202^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80121704.

It is not an unprimeable number, because it can be changed into a prime (80121703) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 385097 + ... + 385304.

Almost surely, 2^80121704 is an apocalyptic number.

It is an amenable number.

80121704 is an abundant number, since it is smaller than the sum of its proper divisors (81662716).

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

80121704 is a wasteful number, since it uses less digits than its factorization.

80121704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770420 (or 770416 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 80121704 is about 8951.0727848677. The cubic root of 80121704 is about 431.1053300634.

The spelling of 80121704 in words is "eighty million, one hundred twenty-one thousand, seven hundred four".