86748489 has 20 divisors (see below), whose sum is σ = 129837840. Its totient is φ = 57720600.

The previous prime is 86748481. The next prime is 86748499. The reversal of 86748489 is 98484768.

86748489 is a `hidden beast` number, since 86 + 7 + 484 + 89 = 666.

It is not a de Polignac number, because 86748489 - 2³ = 86748481 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86748481) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 82014 + ... + 83064.

It is an arithmetic number, because the mean of its divisors is an integer number (6491892).

Almost surely, 2^86748489 is an apocalyptic number.

It is an amenable number.

86748489 is a deficient number, since it is larger than the sum of its proper divisors (43089351).

86748489 is a wasteful number, since it uses less digits than its factorization.

86748489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082 (or 2073 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 86748489 is about 9313.8868900154. The cubic root of 86748489 is about 442.6773549333.

The spelling of 86748489 in words is "eighty-six million, seven hundred forty-eight thousand, four hundred eighty-nine".