80206761 has 8 divisors (see below), whose sum is σ = 106986304. Its totient is φ = 53449200.

The previous prime is 80206717. The next prime is 80206781. The reversal of 80206761 is 16760208.

It is a happy number.

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

It is not a de Polignac number, because 80206761 - 2¹⁰ = 80205737 is a prime.

It is a super-2 number, since 2×80206761² = 12866249020222242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80206781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7236 + ... + 14586.

It is an arithmetic number, because the mean of its divisors is an integer number (13373288).

Almost surely, 2^80206761 is an apocalyptic number.

It is an amenable number.

80206761 is a deficient number, since it is larger than the sum of its proper divisors (26779543).

80206761 is a wasteful number, since it uses less digits than its factorization.

80206761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10991.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 80206761 is about 8955.8227427747. The cubic root of 80206761 is about 431.2578295575.

Adding to 80206761 its reverse (16760208), we get a palindrome (96966969).

The spelling of 80206761 in words is "eighty million, two hundred six thousand, seven hundred sixty-one".