80609759 has 4 divisors (see below), whose sum is σ = 80637216. Its totient is φ = 80582304.

The previous prime is 80609729. The next prime is 80609797. The reversal of 80609759 is 95790608.

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

It is a cyclic number.

It is not a de Polignac number, because 80609759 - 2¹² = 80605663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80609719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8714 + ... + 15399.

It is an arithmetic number, because the mean of its divisors is an integer number (20159304).

Almost surely, 2^80609759 is an apocalyptic number.

80609759 is a deficient number, since it is larger than the sum of its proper divisors (27457).

80609759 is a wasteful number, since it uses less digits than its factorization.

80609759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27456.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 80609759 is about 8978.2937688628. The cubic root of 80609759 is about 431.9789066490.

The spelling of 80609759 in words is "eighty million, six hundred nine thousand, seven hundred fifty-nine".