8642234 has 8 divisors (see below), whose sum is σ = 13058388. Its totient is φ = 4289440.

The previous prime is 8642197. The next prime is 8642237. The reversal of 8642234 is 4322468.

It can be written as a sum of positive squares in 2 ways, for example, as 7823209 + 819025 = 2797^2 + 905^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8642197 and 8642206.

It is not an unprimeable number, because it can be changed into a prime (8642237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15497 + ... + 16044.

Almost surely, 2^8642234 is an apocalyptic number.

8642234 is a deficient number, since it is larger than the sum of its proper divisors (4416154).

8642234 is a wasteful number, since it uses less digits than its factorization.

8642234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31680.

The product of its digits is 9216, while the sum is 29.

The square root of 8642234 is about 2939.7676778957. The cubic root of 8642234 is about 205.2147976617.

The spelling of 8642234 in words is "eight million, six hundred forty-two thousand, two hundred thirty-four".