8542429 has 4 divisors (see below), whose sum is σ = 9762784. Its totient is φ = 7322076.

The previous prime is 8542427. The next prime is 8542451. The reversal of 8542429 is 9242458.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8542429 - 2¹ = 8542427 is a prime.

It is a Duffinian number.

8542429 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8542394 and 8542403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8542421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610167 + ... + 610180.

It is an arithmetic number, because the mean of its divisors is an integer number (2440696).

Almost surely, 2^8542429 is an apocalyptic number.

It is an amenable number.

8542429 is a deficient number, since it is larger than the sum of its proper divisors (1220355).

8542429 is a wasteful number, since it uses less digits than its factorization.

8542429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220354.

The product of its digits is 23040, while the sum is 34.

The square root of 8542429 is about 2922.7434030376. The cubic root of 8542429 is about 204.4217613482.

The spelling of 8542429 in words is "eight million, five hundred forty-two thousand, four hundred twenty-nine".