8342429 has 4 divisors (see below), whose sum is σ = 8460000. Its totient is φ = 8224860.

The previous prime is 8342407. The next prime is 8342431. The reversal of 8342429 is 9242438.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9242438 = 2 ⋅4621219.

It is a cyclic number.

It is not a de Polignac number, because 8342429 - 2¹² = 8338333 is a prime.

It is a super-2 number, since 2×8342429² = 139192243240082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8342395 and 8342404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8342029) 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, 58679 + ... + 58820.

It is an arithmetic number, because the mean of its divisors is an integer number (2115000).

Almost surely, 2^8342429 is an apocalyptic number.

It is an amenable number.

8342429 is a deficient number, since it is larger than the sum of its proper divisors (117571).

8342429 is a wasteful number, since it uses less digits than its factorization.

8342429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117570.

The product of its digits is 13824, while the sum is 32.

The square root of 8342429 is about 2888.3263319784. The cubic root of 8342429 is about 202.8138019413.

Subtracting 8342429 from its reverse (9242438), we obtain a palindrome (900009).

The spelling of 8342429 in words is "eight million, three hundred forty-two thousand, four hundred twenty-nine".