82276009 has 2 divisors, whose sum is σ = 82276010. Its totient is φ = 82276008.

The previous prime is 82276003. The next prime is 82276027. The reversal of 82276009 is 90067228.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46240000 + 36036009 = 6800^2 + 6003^2 .

It is a cyclic number.

It is not a de Polignac number, because 82276009 - 2³ = 82276001 is a prime.

It is not a weakly prime, because it can be changed into another prime (82276001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41138004 + 41138005.

It is an arithmetic number, because the mean of its divisors is an integer number (41138005).

Almost surely, 2^82276009 is an apocalyptic number.

It is an amenable number.

82276009 is a deficient number, since it is larger than the sum of its proper divisors (1).

82276009 is an equidigital number, since it uses as much as digits as its factorization.

82276009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 82276009 is about 9070.6123828549. The cubic root of 82276009 is about 434.9350482139.

The spelling of 82276009 in words is "eighty-two million, two hundred seventy-six thousand, nine".