8909427 has 4 divisors (see below), whose sum is σ = 11879240. Its totient is φ = 5939616.

The previous prime is 8909401. The next prime is 8909437. The reversal of 8909427 is 7249098.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8909427 - 2⁸ = 8909171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8909437) 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, 1484902 + ... + 1484907.

It is an arithmetic number, because the mean of its divisors is an integer number (2969810).

Almost surely, 2^8909427 is an apocalyptic number.

8909427 is a deficient number, since it is larger than the sum of its proper divisors (2969813).

8909427 is a wasteful number, since it uses less digits than its factorization.

8909427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969812.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 8909427 is about 2984.8663286653. The cubic root of 8909427 is about 207.3082527282.

The spelling of 8909427 in words is "eight million, nine hundred nine thousand, four hundred twenty-seven".