80267009 has 2 divisors, whose sum is σ = 80267010. Its totient is φ = 80267008.

The previous prime is 80266969. The next prime is 80267017. The reversal of 80267009 is 90076208.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67699984 + 12567025 = 8228^2 + 3545^2 .

It is a cyclic number.

It is not a de Polignac number, because 80267009 - 2²⁴ = 63489793 is a prime.

It is equal to p_4684037 and since 80267009 and 4684037 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (80267909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40133504 + 40133505.

It is an arithmetic number, because the mean of its divisors is an integer number (40133505).

Almost surely, 2^80267009 is an apocalyptic number.

It is an amenable number.

80267009 is a deficient number, since it is larger than the sum of its proper divisors (1).

80267009 is an equidigital number, since it uses as much as digits as its factorization.

80267009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 80267009 is about 8959.1857330898. The cubic root of 80267009 is about 431.3657835440.

The spelling of 80267009 in words is "eighty million, two hundred sixty-seven thousand, nine".