80494866 has 24 divisors (see below), whose sum is σ = 175581900. Its totient is φ = 26650656.

The previous prime is 80494861. The next prime is 80494867. The reversal of 80494866 is 66849408.

It is a happy number.

80494866 is a `hidden beast` number, since 80 + 494 + 86 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 54331641 + 26163225 = 7371^2 + 5115^2 .

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 12325 + ... + 17688.

Almost surely, 2^80494866 is an apocalyptic number.

80494866 is an abundant number, since it is smaller than the sum of its proper divisors (95087034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80494866 is a wasteful number, since it uses less digits than its factorization.

80494866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30170 (or 30167 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 80494866 is about 8971.8931112670. The cubic root of 80494866 is about 431.7735760469.

The spelling of 80494866 in words is "eighty million, four hundred ninety-four thousand, eight hundred sixty-six".