1009427 has 4 divisors (see below), whose sum is σ = 1011456. Its totient is φ = 1007400.

The previous prime is 1009417. The next prime is 1009433. The reversal of 1009427 is 7249001.

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

It is a cyclic number.

It is not a de Polignac number, because 1009427 - 2¹² = 1005331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1009417) 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, 302 + ... + 1452.

It is an arithmetic number, because the mean of its divisors is an integer number (252864).

2^1009427 is an apocalyptic number.

1009427 is a deficient number, since it is larger than the sum of its proper divisors (2029).

1009427 is an equidigital number, since it uses as much as digits as its factorization.

1009427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1009427 is about 1004.7024435125. The cubic root of 1009427 is about 100.3132510465.

The spelling of 1009427 in words is "one million, nine thousand, four hundred twenty-seven".