86823047 has 2 divisors, whose sum is σ = 86823048. Its totient is φ = 86823046.

The previous prime is 86823031. The next prime is 86823083. The reversal of 86823047 is 74032868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86823047 - 2⁴ = 86823031 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86823047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86823007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43411523 + 43411524.

It is an arithmetic number, because the mean of its divisors is an integer number (43411524).

Almost surely, 2^86823047 is an apocalyptic number.

86823047 is a deficient number, since it is larger than the sum of its proper divisors (1).

86823047 is an equidigital number, since it uses as much as digits as its factorization.

86823047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 86823047 is about 9317.8885483783. Note that the first 3 decimals coincide. The cubic root of 86823047 is about 442.8041417221.

The spelling of 86823047 in words is "eighty-six million, eight hundred twenty-three thousand, forty-seven".