1016399 has 2 divisors, whose sum is σ = 1016400. Its totient is φ = 1016398.

The previous prime is 1016371. The next prime is 1016401. The reversal of 1016399 is 9936101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1016399 - 2⁸ = 1016143 is a prime.

It is a Sophie Germain prime.

Together with 1016401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1016339) 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, 508199 + 508200.

It is an arithmetic number, because the mean of its divisors is an integer number (508200).

2^1016399 is an apocalyptic number.

1016399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1016399 is an equidigital number, since it uses as much as digits as its factorization.

1016399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 1016399 is about 1008.1661569404. The cubic root of 1016399 is about 100.5436721823.

The spelling of 1016399 in words is "one million, sixteen thousand, three hundred ninety-nine".