8742123 has 12 divisors (see below), whose sum is σ = 13599040. Its totient is φ = 5379696.

The previous prime is 8742121. The next prime is 8742133. The reversal of 8742123 is 3212478.

8742123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8742123 - 2¹ = 8742121 is a prime.

It is a d-powerful number, because it can be written as 8⁵ + 7⁷ + 4¹¹ + 2⁵ + 1 + 2²¹ + 3¹³ .

It is not an unprimeable number, because it can be changed into a prime (8742121) 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, 37243 + ... + 37476.

Almost surely, 2^8742123 is an apocalyptic number.

8742123 is a deficient number, since it is larger than the sum of its proper divisors (4856917).

8742123 is a wasteful number, since it uses less digits than its factorization.

8742123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74738 (or 74735 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 8742123 is about 2956.7081357483. The cubic root of 8742123 is about 206.0024114463.

The spelling of 8742123 in words is "eight million, seven hundred forty-two thousand, one hundred twenty-three".