86576449 has 2 divisors, whose sum is σ = 86576450. Its totient is φ = 86576448.

The previous prime is 86576447. The next prime is 86576453. The reversal of 86576449 is 94467568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85895824 + 680625 = 9268^2 + 825^2 .

It is a cyclic number.

It is not a de Polignac number, because 86576449 - 2¹ = 86576447 is a prime.

Together with 86576447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (86576447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43288224 + 43288225.

It is an arithmetic number, because the mean of its divisors is an integer number (43288225).

Almost surely, 2^86576449 is an apocalyptic number.

It is an amenable number.

86576449 is a deficient number, since it is larger than the sum of its proper divisors (1).

86576449 is an equidigital number, since it uses as much as digits as its factorization.

86576449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 49.

The square root of 86576449 is about 9304.6466348809. The cubic root of 86576449 is about 442.3845213468.

It can be divided in two parts, 86576 and 449, that added together give a square (87025 = 295²).

The spelling of 86576449 in words is "eighty-six million, five hundred seventy-six thousand, four hundred forty-nine".