1400017 has 2 divisors, whose sum is σ = 1400018. Its totient is φ = 1400016.

The previous prime is 1399999. The next prime is 1400023. The reversal of 1400017 is 7100041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 904401 + 495616 = 951^2 + 704^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1400017 is a prime.

It is a Chen prime.

1400017 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1400417) 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, 700008 + 700009.

It is an arithmetic number, because the mean of its divisors is an integer number (700009).

2^1400017 is an apocalyptic number.

It is an amenable number.

1400017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400017 is an equidigital number, since it uses as much as digits as its factorization.

1400017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 1400017 is about 1183.2231404093. The cubic root of 1400017 is about 111.8693470090.

Adding to 1400017 its reverse (7100041), we get a palindrome (8500058).

The spelling of 1400017 in words is "one million, four hundred thousand, seventeen".