84028234 has 4 divisors (see below), whose sum is σ = 126042354. Its totient is φ = 42014116.

The previous prime is 84028211. The next prime is 84028249. The reversal of 84028234 is 43282048.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66830625 + 17197609 = 8175^2 + 4147^2 .

It is a junction number, because it is equal to n+sod(n) for n = 84028196 and 84028205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21007057 + ... + 21007060.

Almost surely, 2^84028234 is an apocalyptic number.

84028234 is a deficient number, since it is larger than the sum of its proper divisors (42014120).

84028234 is a wasteful number, since it uses less digits than its factorization.

84028234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42014119.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 84028234 is about 9166.6915514814. The cubic root of 84028234 is about 438.0009764857. Note that the first 3 decimals are identical.

The spelling of 84028234 in words is "eighty-four million, twenty-eight thousand, two hundred thirty-four".