80478824 has 8 divisors (see below), whose sum is σ = 150897810. Its totient is φ = 40239408.

The previous prime is 80478823. The next prime is 80478847. The reversal of 80478824 is 42887408.

It can be written as a sum of positive squares in only one way, i.e., 63520900 + 16957924 = 7970^2 + 4118^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×80478824² = 12953682224845952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80478823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5029919 + ... + 5029934.

Almost surely, 2^80478824 is an apocalyptic number.

It is an amenable number.

80478824 is a deficient number, since it is larger than the sum of its proper divisors (70418986).

80478824 is a wasteful number, since it uses less digits than its factorization.

80478824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10059859 (or 10059855 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 41.

The square root of 80478824 is about 8970.9990525025. Note that the first 3 decimals coincide. The cubic root of 80478824 is about 431.7448911041.

The spelling of 80478824 in words is "eighty million, four hundred seventy-eight thousand, eight hundred twenty-four".