80609281 has 8 divisors (see below), whose sum is σ = 82272960. Its totient is φ = 78955632.

The previous prime is 80609279. The next prime is 80609311. The reversal of 80609281 is 18290608.

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 80609281 - 2¹ = 80609279 is a prime.

It is a super-2 number, since 2×80609281² = 12995712366673922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80609201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14956 + ... + 19618.

It is an arithmetic number, because the mean of its divisors is an integer number (10284120).

It is a Proth number, since it is equal to 615 ⋅ 2¹⁷ + 1 and 615 < 2¹⁷.

Almost surely, 2^80609281 is an apocalyptic number.

It is an amenable number.

80609281 is a deficient number, since it is larger than the sum of its proper divisors (1663679).

80609281 is a wasteful number, since it uses less digits than its factorization.

80609281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 80609281 is about 8978.2671490661. The cubic root of 80609281 is about 431.9780527973.

Adding to 80609281 its reverse (18290608), we get a palindrome (98899889).

The spelling of 80609281 in words is "eighty million, six hundred nine thousand, two hundred eighty-one".