80497618 has 16 divisors (see below), whose sum is σ = 128158200. Its totient is φ = 37789696.

The previous prime is 80497609. The next prime is 80497621. The reversal of 80497618 is 81679408.

It can be written as a sum of positive squares in 4 ways, for example, as 77563249 + 2934369 = 8807^2 + 1713^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12630 + ... + 17902.

Almost surely, 2^80497618 is an apocalyptic number.

80497618 is a deficient number, since it is larger than the sum of its proper divisors (47660582).

80497618 is a wasteful number, since it uses less digits than its factorization.

80497618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5741.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 80497618 is about 8972.0464778110. The cubic root of 80497618 is about 431.7784965567.

The spelling of 80497618 in words is "eighty million, four hundred ninety-seven thousand, six hundred eighteen".