80000761 has 2 divisors, whose sum is σ = 80000762. Its totient is φ = 80000760.

The previous prime is 80000749. The next prime is 80000777. The reversal of 80000761 is 16700008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79995136 + 5625 = 8944^2 + 75^2 .

It is a cyclic number.

It is not a de Polignac number, because 80000761 - 2²³ = 71612153 is a prime.

It is not a weakly prime, because it can be changed into another prime (80000731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40000380 + 40000381.

It is an arithmetic number, because the mean of its divisors is an integer number (40000381).

Almost surely, 2^80000761 is an apocalyptic number.

It is an amenable number.

80000761 is a deficient number, since it is larger than the sum of its proper divisors (1).

80000761 is an equidigital number, since it uses as much as digits as its factorization.

80000761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 80000761 is about 8944.3144510913. The cubic root of 80000761 is about 430.8883042727. Note that the first 3 decimals are identical.

Adding to 80000761 its reverse (16700008), we get a palindrome (96700769).

The spelling of 80000761 in words is "eighty million, seven hundred sixty-one", and thus it is an aban number.