80664592 has 20 divisors (see below), whose sum is σ = 165481596. Its totient is φ = 37959680.

The previous prime is 80664587. The next prime is 80664593. The reversal of 80664592 is 29546608.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 74028816 + 6635776 = 8604^2 + 2576^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80664593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148009 + ... + 148552.

Almost surely, 2^80664592 is an apocalyptic number.

It is an amenable number.

80664592 is an abundant number, since it is smaller than the sum of its proper divisors (84817004).

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

80664592 is a wasteful number, since it uses less digits than its factorization.

80664592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296586 (or 296580 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 80664592 is about 8981.3468923096. The cubic root of 80664592 is about 432.0768324706.

The spelling of 80664592 in words is "eighty million, six hundred sixty-four thousand, five hundred ninety-two".