80298643 has 4 divisors (see below), whose sum is σ = 80319168. Its totient is φ = 80278120.

The previous prime is 80298619. The next prime is 80298679. The reversal of 80298643 is 34689208.

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

It is a cyclic number.

It is not a de Polignac number, because 80298643 - 2¹³ = 80290451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80298596 and 80298605.

It is not an unprimeable number, because it can be changed into a prime (80298683) 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 in 3 ways as a sum of consecutive naturals, for example, 2371 + ... + 12892.

It is an arithmetic number, because the mean of its divisors is an integer number (20079792).

Almost surely, 2^80298643 is an apocalyptic number.

80298643 is a deficient number, since it is larger than the sum of its proper divisors (20525).

80298643 is a wasteful number, since it uses less digits than its factorization.

80298643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20524.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 80298643 is about 8960.9510097980. The cubic root of 80298643 is about 431.4224445687.

The spelling of 80298643 in words is "eighty million, two hundred ninety-eight thousand, six hundred forty-three".