940000387 has 2 divisors, whose sum is σ = 940000388. Its totient is φ = 940000386.

The previous prime is 940000367. The next prime is 940000447. The reversal of 940000387 is 783000049.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 940000387 - 2¹⁵ = 939967619 is a prime.

It is not a weakly prime, because it can be changed into another prime (940000307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470000193 + 470000194.

It is an arithmetic number, because the mean of its divisors is an integer number (470000194).

Almost surely, 2^940000387 is an apocalyptic number.

940000387 is a deficient number, since it is larger than the sum of its proper divisors (1).

940000387 is an equidigital number, since it uses as much as digits as its factorization.

940000387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 940000387 is about 30659.4257447852. The cubic root of 940000387 is about 979.5862431481.

The spelling of 940000387 in words is "nine hundred forty million, three hundred eighty-seven", and thus it is an aban number.