7889234 has 4 divisors (see below), whose sum is σ = 11833854. Its totient is φ = 3944616.

The previous prime is 7889149. The next prime is 7889239. The reversal of 7889234 is 4329887.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4329887 = 41 ⋅105607.

It can be written as a sum of positive squares in only one way, i.e., 7590025 + 299209 = 2755^2 + 547^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7889191 and 7889200.

It is not an unprimeable number, because it can be changed into a prime (7889239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1972307 + ... + 1972310.

Almost surely, 2^7889234 is an apocalyptic number.

7889234 is a deficient number, since it is larger than the sum of its proper divisors (3944620).

7889234 is a wasteful number, since it uses less digits than its factorization.

7889234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944619.

The product of its digits is 96768, while the sum is 41.

The square root of 7889234 is about 2808.7780261174. The cubic root of 7889234 is about 199.0726568188.

The spelling of 7889234 in words is "seven million, eight hundred eighty-nine thousand, two hundred thirty-four".