80909243 has 8 divisors (see below), whose sum is σ = 81991536. Its totient is φ = 79833600.

The previous prime is 80909219. The next prime is 80909249. The reversal of 80909243 is 34290908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80909243 - 2¹² = 80905147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80909249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25748 + ... + 28718.

It is an arithmetic number, because the mean of its divisors is an integer number (10248942).

Almost surely, 2^80909243 is an apocalyptic number.

80909243 is a deficient number, since it is larger than the sum of its proper divisors (1082293).

80909243 is a wasteful number, since it uses less digits than its factorization.

80909243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 80909243 is about 8994.9565313013. The cubic root of 80909243 is about 432.5132128678.

The spelling of 80909243 in words is "eighty million, nine hundred nine thousand, two hundred forty-three".