9420109 has 4 divisors (see below), whose sum is σ = 9426816. Its totient is φ = 9413404.

The previous prime is 9420101. The next prime is 9420121. The reversal of 9420109 is 9010249.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9010249 = 61 ⋅147709.

It is a cyclic number.

It is not a de Polignac number, because 9420109 - 2³ = 9420101 is a prime.

It is a Duffinian number.

9420109 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9420101) 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, 349 + ... + 4354.

It is an arithmetic number, because the mean of its divisors is an integer number (2356704).

Almost surely, 2^9420109 is an apocalyptic number.

It is an amenable number.

9420109 is a deficient number, since it is larger than the sum of its proper divisors (6707).

9420109 is a wasteful number, since it uses less digits than its factorization.

9420109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6706.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 9420109 is about 3069.2196076527. The cubic root of 9420109 is about 211.1958156143.

The spelling of 9420109 in words is "nine million, four hundred twenty thousand, one hundred nine".