86489649 has 12 divisors (see below), whose sum is σ = 125384116. Its totient is φ = 57449952.

The previous prime is 86489603. The next prime is 86489671. The reversal of 86489649 is 94698468.

It can be written as a sum of positive squares in 2 ways, for example, as 34433424 + 52056225 = 5868^2 + 7215^2 .

It is not a de Polignac number, because 86489649 - 2¹⁹ = 85965361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 86489595 and 86489604.

It is not an unprimeable number, because it can be changed into a prime (86489699) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14854 + ... + 19839.

Almost surely, 2^86489649 is an apocalyptic number.

It is an amenable number.

86489649 is a deficient number, since it is larger than the sum of its proper divisors (38894467).

86489649 is a wasteful number, since it uses less digits than its factorization.

86489649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34976 (or 34973 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 86489649 is about 9299.9811290131. The cubic root of 86489649 is about 442.2366296405.

The spelling of 86489649 in words is "eighty-six million, four hundred eighty-nine thousand, six hundred forty-nine".