80494865 has 32 divisors (see below), whose sum is σ = 110246400. Its totient is φ = 55883520.

The previous prime is 80494861. The next prime is 80494867. The reversal of 80494865 is 56849408.

It is a happy number.

It is not a de Polignac number, because 80494865 - 2² = 80494861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80494861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173624 + ... + 174086.

It is an arithmetic number, because the mean of its divisors is an integer number (3445200).

Almost surely, 2^80494865 is an apocalyptic number.

It is an amenable number.

80494865 is a deficient number, since it is larger than the sum of its proper divisors (29751535).

80494865 is a wasteful number, since it uses less digits than its factorization.

80494865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 80494865 is about 8971.8930555374. The cubic root of 80494865 is about 431.7735742589.

The spelling of 80494865 in words is "eighty million, four hundred ninety-four thousand, eight hundred sixty-five".