80463421 has 2 divisors, whose sum is σ = 80463422. Its totient is φ = 80463420.

The previous prime is 80463403. The next prime is 80463463. The reversal of 80463421 is 12436408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63776196 + 16687225 = 7986^2 + 4085^2 .

It is a cyclic number.

It is not a de Polignac number, because 80463421 - 2⁷ = 80463293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80463421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80463491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40231710 + 40231711.

It is an arithmetic number, because the mean of its divisors is an integer number (40231711).

Almost surely, 2^80463421 is an apocalyptic number.

It is an amenable number.

80463421 is a deficient number, since it is larger than the sum of its proper divisors (1).

80463421 is an equidigital number, since it uses as much as digits as its factorization.

80463421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 80463421 is about 8970.1405228681. The cubic root of 80463421 is about 431.7173451794.

Adding to 80463421 its reverse (12436408), we get a palindrome (92899829).

The spelling of 80463421 in words is "eighty million, four hundred sixty-three thousand, four hundred twenty-one".