80282491 has 4 divisors (see below), whose sum is σ = 80360800. Its totient is φ = 80204184.

The previous prime is 80282479. The next prime is 80282507. The reversal of 80282491 is 19428208.

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 80282491 - 2⁵ = 80282459 is a prime.

It is a super-2 number, since 2×80282491² = 12890556722330162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80282401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37596 + ... + 39673.

It is an arithmetic number, because the mean of its divisors is an integer number (20090200).

Almost surely, 2^80282491 is an apocalyptic number.

80282491 is a deficient number, since it is larger than the sum of its proper divisors (78309).

80282491 is a wasteful number, since it uses less digits than its factorization.

80282491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78308.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 80282491 is about 8960.0497208442. The cubic root of 80282491 is about 431.3935158831.

The spelling of 80282491 in words is "eighty million, two hundred eighty-two thousand, four hundred ninety-one".