80549297 has 4 divisors (see below), whose sum is σ = 82513956. Its totient is φ = 78584640.

The previous prime is 80549291. The next prime is 80549299. The reversal of 80549297 is 79294508.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12503296 + 68046001 = 3536^2 + 8249^2 .

It is a cyclic number.

It is not a de Polignac number, because 80549297 - 2⁶ = 80549233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80549291) 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, 982268 + ... + 982349.

It is an arithmetic number, because the mean of its divisors is an integer number (20628489).

Almost surely, 2^80549297 is an apocalyptic number.

It is an amenable number.

80549297 is a deficient number, since it is larger than the sum of its proper divisors (1964659).

80549297 is a wasteful number, since it uses less digits than its factorization.

80549297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964658.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 80549297 is about 8974.9260164082. The cubic root of 80549297 is about 431.8708765470.

The spelling of 80549297 in words is "eighty million, five hundred forty-nine thousand, two hundred ninety-seven".