80809761 has 8 divisors (see below), whose sum is σ = 108145024. Its totient is φ = 53673840.

The previous prime is 80809733. The next prime is 80809769. The reversal of 80809761 is 16790808.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80809761 - 2⁶ = 80809697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80809769) 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 7 ways as a sum of consecutive naturals, for example, 48886 + ... + 50511.

It is an arithmetic number, because the mean of its divisors is an integer number (13518128).

Almost surely, 2^80809761 is an apocalyptic number.

It is an amenable number.

80809761 is a deficient number, since it is larger than the sum of its proper divisors (27335263).

80809761 is a wasteful number, since it uses less digits than its factorization.

80809761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99671.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 80809761 is about 8989.4249537999. The cubic root of 80809761 is about 432.3358745537.

The spelling of 80809761 in words is "eighty million, eight hundred nine thousand, seven hundred sixty-one".