80748609 has 16 divisors (see below), whose sum is σ = 108892800. Its totient is φ = 53222400.

The previous prime is 80748599. The next prime is 80748611. The reversal of 80748609 is 90684708.

It is a happy number.

It is not a de Polignac number, because 80748609 - 2⁴ = 80748593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80748649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179617 + ... + 180065.

It is an arithmetic number, because the mean of its divisors is an integer number (6805800).

Almost surely, 2^80748609 is an apocalyptic number.

It is an amenable number.

80748609 is a deficient number, since it is larger than the sum of its proper divisors (28144191).

80748609 is a wasteful number, since it uses less digits than its factorization.

80748609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 80748609 is about 8986.0229801620. The cubic root of 80748609 is about 432.2267917118.

The spelling of 80748609 in words is "eighty million, seven hundred forty-eight thousand, six hundred nine".