1009387 has 2 divisors, whose sum is σ = 1009388. Its totient is φ = 1009386.

The previous prime is 1009373. The next prime is 1009399. The reversal of 1009387 is 7839001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1009387 - 2⁷ = 1009259 is a prime.

It is a Chen prime.

1009387 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1009357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504693 + 504694.

It is an arithmetic number, because the mean of its divisors is an integer number (504694).

2^1009387 is an apocalyptic number.

1009387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009387 is an equidigital number, since it uses as much as digits as its factorization.

1009387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1009387 is about 1004.6825369240. The cubic root of 1009387 is about 100.3119260100.

The spelling of 1009387 in words is "one million, nine thousand, three hundred eighty-seven".