80478331 has 2 divisors, whose sum is σ = 80478332. Its totient is φ = 80478330.

The previous prime is 80478317. The next prime is 80478361. The reversal of 80478331 is 13387408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80478331 - 2⁹ = 80477819 is a prime.

It is a super-2 number, since 2×80478331² = 12953523521091122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80478361) by changing a digit.

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 as a sum of consecutive naturals, namely, 40239165 + 40239166.

It is an arithmetic number, because the mean of its divisors is an integer number (40239166).

Almost surely, 2^80478331 is an apocalyptic number.

80478331 is a deficient number, since it is larger than the sum of its proper divisors (1).

80478331 is an equidigital number, since it uses as much as digits as its factorization.

80478331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 80478331 is about 8970.9715750302. The cubic root of 80478331 is about 431.7440095029.

The spelling of 80478331 in words is "eighty million, four hundred seventy-eight thousand, three hundred thirty-one".