86823649 has 8 divisors (see below), whose sum is σ = 94785120. Its totient is φ = 78873600.

The previous prime is 86823637. The next prime is 86823697. The reversal of 86823649 is 94632868.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86823649 - 2¹³ = 86815457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86823599 and 86823608.

It is not an unprimeable number, because it can be changed into a prime (86823949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24417 + ... + 27745.

It is an arithmetic number, because the mean of its divisors is an integer number (11848140).

Almost surely, 2^86823649 is an apocalyptic number.

It is an amenable number.

86823649 is a deficient number, since it is larger than the sum of its proper divisors (7961471).

86823649 is a wasteful number, since it uses less digits than its factorization.

86823649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5711.

The product of its digits is 497664, while the sum is 46.

The square root of 86823649 is about 9317.9208517780. The cubic root of 86823649 is about 442.8051651350.

The spelling of 86823649 in words is "eighty-six million, eight hundred twenty-three thousand, six hundred forty-nine".