8686489 has 16 divisors (see below), whose sum is σ = 10229760. Its totient is φ = 7223040.

The previous prime is 8686487. The next prime is 8686499. The reversal of 8686489 is 9846868.

It is a cyclic number.

It is not a de Polignac number, because 8686489 - 2¹ = 8686487 is a prime.

It is a super-2 number, since 2×8686489² = 150910182294242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8686487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45384 + ... + 45574.

It is an arithmetic number, because the mean of its divisors is an integer number (639360).

Almost surely, 2^8686489 is an apocalyptic number.

8686489 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

8686489 is a deficient number, since it is larger than the sum of its proper divisors (1543271).

8686489 is a wasteful number, since it uses less digits than its factorization.

8686489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360.

The product of its digits is 663552, while the sum is 49.

The square root of 8686489 is about 2947.2850218464. The cubic root of 8686489 is about 205.5644882193.

The spelling of 8686489 in words is "eight million, six hundred eighty-six thousand, four hundred eighty-nine".