8433864 has 48 divisors (see below), whose sum is σ = 23407020. Its totient is φ = 2741760.

The previous prime is 8433863. The next prime is 8433869. The reversal of 8433864 is 4683348.

It can be written as a sum of positive squares in 2 ways, for example, as 8122500 + 311364 = 2850^2 + 558^2 .

It is a super-2 number, since 2×8433864² = 142260123940992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 (8433863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1524 + ... + 4380.

Almost surely, 2^8433864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8433864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11703510).

8433864 is an abundant number, since it is smaller than the sum of its proper divisors (14973156).

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

8433864 is a wasteful number, since it uses less digits than its factorization.

8433864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910 (or 2903 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 8433864 is about 2904.1115681048. Note that the first 3 decimals coincide. The cubic root of 8433864 is about 203.5520737172.

The spelling of 8433864 in words is "eight million, four hundred thirty-three thousand, eight hundred sixty-four".