80478113 has 4 divisors (see below), whose sum is σ = 81275028. Its totient is φ = 79681200.

The previous prime is 80478067. The next prime is 80478131. The reversal of 80478113 is 31187408.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57274624 + 23203489 = 7568^2 + 4817^2 .

It is a cyclic number.

It is not a de Polignac number, because 80478113 - 2⁸ = 80477857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 80478113.

It is not an unprimeable number, because it can be changed into a prime (80478133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398306 + ... + 398507.

It is an arithmetic number, because the mean of its divisors is an integer number (20318757).

Almost surely, 2^80478113 is an apocalyptic number.

It is an amenable number.

80478113 is a deficient number, since it is larger than the sum of its proper divisors (796915).

80478113 is a wasteful number, since it uses less digits than its factorization.

80478113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796914.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 80478113 is about 8970.9594247215. The cubic root of 80478113 is about 431.7436196660.

The spelling of 80478113 in words is "eighty million, four hundred seventy-eight thousand, one hundred thirteen".