9421429 has 4 divisors (see below), whose sum is σ = 9640576. Its totient is φ = 9202284.

The previous prime is 9421411. The next prime is 9421441. The reversal of 9421429 is 9241249.

It is a happy number.

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 9421429 - 2¹³ = 9413237 is a prime.

It is an Ulam number.

It is a Duffinian number.

9421429 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9421429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9421459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109509 + ... + 109594.

It is an arithmetic number, because the mean of its divisors is an integer number (2410144).

Almost surely, 2^9421429 is an apocalyptic number.

It is an amenable number.

9421429 is a deficient number, since it is larger than the sum of its proper divisors (219147).

9421429 is a wasteful number, since it uses less digits than its factorization.

9421429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219146.

The product of its digits is 5184, while the sum is 31.

The square root of 9421429 is about 3069.4346384962. The cubic root of 9421429 is about 211.2056798121.

The spelling of 9421429 in words is "nine million, four hundred twenty-one thousand, four hundred twenty-nine".