8739864 has 48 divisors (see below), whose sum is σ = 27053520. Its totient is φ = 2496960.

The previous prime is 8739851. The next prime is 8739869. The reversal of 8739864 is 4689378.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8739869) 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, 8167 + ... + 9174.

It is an arithmetic number, because the mean of its divisors is an integer number (563615).

Almost surely, 2^8739864 is an apocalyptic number.

8739864 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

8739864 is an abundant number, since it is smaller than the sum of its proper divisors (18313656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8739864 is a wasteful number, since it uses less digits than its factorization.

8739864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17360 (or 17353 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 8739864 is about 2956.3260983863. The cubic root of 8739864 is about 205.9846659652.

The spelling of 8739864 in words is "eight million, seven hundred thirty-nine thousand, eight hundred sixty-four".